| Nominal | 42121 |
| Cardinal | forty-two thousand one hundred twenty-one |
Cardinal forty-two thousand one hundred twenty-one | |
| Ordinal | 42,121st |
| Number of digits | 5 |
| Sum of digits | 10 |
| Product of digits | 16 |
| Number parity | Odd |
| Prime factorization | 73 x 577 |
| Prime factors | 73, 577 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 2 |
| Sum of prime factors | 650 |
| Product of prime factors | 42121 |
| Is 42121 a prime number? | No |
| Is 42121 a semiprime number? | Yes |
| Is 42121 a Chen prime number? | No |
| Is 42121 a Mersenne prime number? | No |
| Is 42121 a Catalan number? | No |
| Is 42121 a Fibonacci number? | No |
| Is 42121 a Idoneal number? | No |
| Square of 42121 (n2) | 1774178641 |
| Cube of 42121 (n3) | 74730178537561 |
| Square root of 42121 | 205.23401277566 |
| Natural Logarithm (ln) of 42121 | 10.648301707656 |
| Decimal Logarithm (log) of 42121 | 4.6244986732762 |
| Sine of 42121 | -0.99534777667148 |
| Cosecant of 42121 | -1.0046739676699 |
| Cosine of 42121 | 0.096347306527664 |
| Secant of 42121 | 10.379117341624 |
| Tangent of 42121 | -10.330831369797 |
| Cotangent of 42121 | -0.096797630723461 |
| The spelling of 42121 in words is "forty-two thousand one hundred twenty-one", meaning that: |
| 42121 is not an aban number (as it contains the letter a) |
| 42121 is not an eban number (as it contains the letter e) |
| 42121 is an iban number (a number without the letter i) |
| 42121 is not an oban number (as it contains the letter o) |
| 42121 is not a tban number (as it contains the letter t) |
| 42121 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৪২১২১ |
| Eastern Arabic numerals | ٤٢٬١٢١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓂭𓂭𓆼𓆼𓍢𓎇𓏺 |
| Khmer numerals | ៤២១២១ |
| Japanese numerals | 四万二千百二十一 |
| Roman numerals | n/a |
| Thai numerals | ๔๒๑๒๑ |
| Arabic | إثنان و أربعون ألف و مائة و واحد و عشرون |
| Croatian | četrdeset i dvije tisuća sto dvadeset i jedan |
| Czech | čtyřicet dvě tisíc sto dvacet jeden |
| Danish | to og fyrre tusinde et hundrede en og tyve |
| Dutch | tweeenveertigduizend honderdéénentwintig |
| Estonian | akpe blaene vɔ eve alafa ɖeka blaeve vɔ ɖekɛ |
| Faroese | fýratitvey tusin og eitthundraðogtjúgoein |
| Filipino | ápat na pû’t dalawáng libó’t isáng daán at dalawáng pû’t isá |
| Finnish | neljäkymmentäkaksituhattasatakaksikymmentäyksi |
| French | quarante-deux mille cent vingt et un |
| Greek | σαράντα δύο χίλιάδες εκατόν είκοσι ένα |
| German | zweiundvierzigtausendeinhunderteinundzwanzig |
| Hebrew | ארבעים ושניים אלף מאה עשרים ואחת |
| Hindi | बयालीस हज़ार एक सौ इक्कीस |
| Hungarian | negyvenkettőezerszázhuszonegy |
| Icelandic | fjörutíu og tvö þúsund og eitthundrað og tuttugu og einn |
| Indonesian | empat puluh dua ribu seratus dua puluh satu |
| Italian | quarantaduemilacentoventuno |
| Japanese | 四万二千百二十一 |
| Korean | 사만 이천백이십일 |
| Latvian | četrdesmit divi tūkstoši simt divdesmit viens |
| Lithuanian | keturiasdešimt du tūkstančiai šimtas dvidešimt vienas |
| Norwegian | førtito tusen hundre og tjueén |
| Persian | چهل و دو هزار و صد و بیست و یک |
| Polish | czterdzieści dwa tysiące sto dwadzieścia jeden |
| Portuguese | quarenta e dois mil cento e vinte e um |
| Romanian | patruzeci şi două mii una sută douăzeci şi unu |
| Russian | сорок две тысячи сто двадцать один |
| Serbian | четрдесет и две хиљада сто двадесет и један |
| Slovak | štyridsaťdve tisíc jednasto dvadsaťjeden |
| Slovene | štirideset dvije tisuću sto dvaset ena |
| Spanish | cuarenta y dos mil ciento veintiuno |
| Swahili | elfu arobaini na mbili, mia moja na ishirini na moja |
| Swedish | fyrtiotvåtusenenhundratjugoen |
| Thai | สี่หมื่นสองพันหนึ่งร้อยยี่สิบเอ็ด |
| Turkish | kırk iki bin yüz yirmi bir |
| Ukrainian | сорок дві тисячі сто двадцять один |
| Vietnamese | bốn mươi hai nghìn một trăm hai mươi mốt |
| Number 42121 reversed | 12124 | |
| Unicode Character | U+A489 | ꒉ |
| Unix Timestamp | Thu, 01 Jan 1970 11:42:01 +0000 | |