| Nominal | 72121 |
| Cardinal | seventy-two thousand one hundred twenty-one |
Cardinal seventy-two thousand one hundred twenty-one | |
| Ordinal | 72,121st |
| Number of digits | 5 |
| Sum of digits | 13 |
| Product of digits | 28 |
| Number parity | Odd |
| Prime factorization | 7 x 10303 |
| Prime factors | 7, 10303 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 2 |
| Sum of prime factors | 10310 |
| Product of prime factors | 72121 |
| Is 72121 a prime number? | No |
| Is 72121 a semiprime number? | Yes |
| Is 72121 a Chen prime number? | No |
| Is 72121 a Mersenne prime number? | No |
| Is 72121 a Catalan number? | No |
| Is 72121 a Fibonacci number? | No |
| Is 72121 a Idoneal number? | No |
| Square of 72121 (n2) | 5201438641 |
| Cube of 72121 (n3) | 375132956227561 |
| Square root of 72121 | 268.55353283843 |
| Natural Logarithm (ln) of 72121 | 11.186100543 |
| Decimal Logarithm (log) of 72121 | 4.85806173984 |
| Sine of 72121 | 0.51632015674436 |
| Cosecant of 72121 | 1.9367828021774 |
| Cosine of 72121 | -0.85639564206007 |
| Secant of 72121 | -1.1676845967998 |
| Tangent of 72121 | -0.60289909404764 |
| Cotangent of 72121 | -1.6586523514016 |
| The spelling of 72121 in words is "seventy-two thousand one hundred twenty-one", meaning that: |
| 72121 is not an aban number (as it contains the letter a) |
| 72121 is not an eban number (as it contains the letter e) |
| 72121 is an iban number (a number without the letter i) |
| 72121 is not an oban number (as it contains the letter o) |
| 72121 is not a tban number (as it contains the letter t) |
| 72121 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৭২১২১ |
| Eastern Arabic numerals | ٧٢٬١٢١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓂭𓂭𓂭𓂭𓂭𓆼𓆼𓍢𓎇𓏺 |
| Khmer numerals | ៧២១២១ |
| Japanese numerals | 七万二千百二十一 |
| Roman numerals | n/a |
| Thai numerals | ๗๒๑๒๑ |
| Arabic | إثنان و سبعون ألف و مائة و واحد و عشرون |
| Croatian | sedamdeset i dvije tisuća sto dvadeset i jedan |
| Czech | sedmdesát dvě tisíc sto dvacet jeden |
| Danish | to og halvfjerds tusinde et hundrede en og tyve |
| Dutch | tweeenzeventigduizend honderdéénentwintig |
| Estonian | akpe blaadre vɔ eve alafa ɖeka blaeve vɔ ɖekɛ |
| Faroese | sjeytitvey tusin og eitthundraðogtjúgoein |
| Filipino | pitóng pû’t dalawáng libó’t isáng daán at dalawáng pû’t isá |
| Finnish | seitsemänkymmentäkaksituhattasatakaksikymmentäyksi |
| French | soixante-douze mille cent vingt et un |
| Greek | εβδομήντα δύο χίλιάδες εκατόν είκοσι ένα |
| German | zweiundsiebzigtausendeinhunderteinundzwanzig |
| Hebrew | שבעים ושניים אלף מאה עשרים ואחת |
| Hindi | बहत्तर हज़ार एक सौ इक्कीस |
| Hungarian | hetvenkettőezerszázhuszonegy |
| Icelandic | sjötíu og tvö þúsund og eitthundrað og tuttugu og einn |
| Indonesian | tujuh puluh dua ribu seratus dua puluh satu |
| Italian | settantaduemilacentoventuno |
| Japanese | 七万二千百二十一 |
| Korean | 칠만 이천백이십일 |
| Latvian | septiņdesmit divi tūkstoši simt divdesmit viens |
| Lithuanian | septyniasdešimt du tūkstančiai šimtas dvidešimt vienas |
| Norwegian | syttito tusen hundre og tjueén |
| Persian | هفتاد و دو هزار و صد و بیست و یک |
| Polish | siedemdziesiąt dwa tysiące sto dwadzieścia jeden |
| Portuguese | setenta e dois mil cento e vinte e um |
| Romanian | şaptezeci şi două mii una sută douăzeci şi unu |
| Russian | семьдесят две тысячи сто двадцать один |
| Serbian | седамдесет и две хиљада сто двадесет и један |
| Slovak | sedemdesiatdve tisíc jednasto dvadsaťjeden |
| Slovene | sedemdeset dvije tisuću sto dvaset ena |
| Spanish | setenta y dos mil ciento veintiuno |
| Swahili | elfu sabini na mbili, mia moja na ishirini na moja |
| Swedish | sjutiotvåtusenenhundratjugoen |
| Thai | เจ็ดหมื่นสองพันหนึ่งร้อยยี่สิบเอ็ด |
| Turkish | yetmiş iki bin yüz yirmi bir |
| Ukrainian | сімдесят дві тисячі сто двадцять один |
| Vietnamese | bảy mươi hai nghìn một trăm hai mươi mốt |
| Number 72121 reversed | 12127 | |
| Unicode Character | U+119B9 | 𑦹 |
| Unix Timestamp | Thu, 01 Jan 1970 20:02:01 +0000 | |