| Nominal | 12521 |
| Cardinal | twelve thousand five hundred twenty-one |
Cardinal twelve thousand five hundred twenty-one | |
| Ordinal | 12,521st |
| Number of digits | 5 |
| Sum of digits | 11 |
| Product of digits | 20 |
| Number parity | Odd |
| Prime factorization | 19 x 659 |
| Prime factors | 19, 659 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 2 |
| Sum of prime factors | 678 |
| Product of prime factors | 12521 |
| Is 12521 a prime number? | No |
| Is 12521 a semiprime number? | Yes |
| Is 12521 a Chen prime number? | No |
| Is 12521 a Mersenne prime number? | No |
| Is 12521 a Catalan number? | No |
| Is 12521 a Fibonacci number? | No |
| Is 12521 a Idoneal number? | No |
| Square of 12521 (n2) | 156775441 |
| Cube of 12521 (n3) | 1962985296761 |
| Square root of 12521 | 111.8972743189 |
| Natural Logarithm (ln) of 12521 | 9.4351625136689 |
| Decimal Logarithm (log) of 12521 | 4.0976390155468 |
| Sine of 12521 | -0.98339683446376 |
| Cosecant of 12521 | -1.0168834848297 |
| Cosine of 12521 | 0.1814680852565 |
| Secant of 12521 | 5.5106108525172 |
| Tangent of 12521 | -5.419117268327 |
| Cotangent of 12521 | -0.18453189892101 |
| The spelling of 12521 in words is "twelve thousand five hundred twenty-one", meaning that: |
| 12521 is not an aban number (as it contains the letter a) |
| 12521 is not an eban number (as it contains the letter e) |
| 12521 is not an iban number (as it contains the letter i) |
| 12521 is not an oban number (as it contains the letter o) |
| 12521 is not a tban number (as it contains the letter t) |
| 12521 is not an uban number (as it contains the letter u) |
| Bengali numerals | ১২৫২১ |
| Eastern Arabic numerals | ١٢٬٥٢١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓆼𓆼𓍦𓎇𓏺 |
| Khmer numerals | ១២៥២១ |
| Japanese numerals | 一万二千五百二十一 |
| Roman numerals | n/a |
| Thai numerals | ๑๒๕๒๑ |
| Arabic | إثنا عشر ألف و خمسة مائة و واحد و عشرون |
| Croatian | dvanaest tisuća petsto dvadeset i jedan |
| Czech | dvanáct tisíc pět set dvacet jeden |
| Danish | tolv tusinde fem hundrede en og tyve |
| Dutch | twaalfduizend vijfhonderdéénentwintig |
| Estonian | akpe wuieve alafa atɔ̃ blaeve vɔ ɖekɛ |
| Faroese | tólv tusin og fimmhundraðogtjúgoein |
| Filipino | labíng-dalawáng libó’t limáng daán at dalawáng pû’t isá |
| Finnish | kaksitoistatuhattaviisisataakaksikymmentäyksi |
| French | douze mille cinq cent vingt et un |
| Greek | δώδεκα χίλιάδες πεντακόσια είκοσι ένα |
| German | zwölftausendfünfhunderteinundzwanzig |
| Hebrew | שניים עשר אלף חמש מאות עשרים ואחת |
| Hindi | बारह हज़ार पाँच सौ इक्कीस |
| Hungarian | tizenkettőezerötszázhuszonegy |
| Icelandic | tólf þúsund og fimmhundrað og tuttugu og einn |
| Indonesian | dua belas ribu lima ratus dua puluh satu |
| Italian | dodicimilacinquecentoventuno |
| Japanese | 一万二千五百二十一 |
| Korean | 만 이천오백이십일 |
| Latvian | divpadsmit tūkstoši piecsimt divdesmit viens |
| Lithuanian | dvylika tūkstančių penki šimtai dvidešimt vienas |
| Norwegian | tolv tusen fem hundre og tjueén |
| Persian | دوازده هزار و پانصد و بیست و یک |
| Polish | dwanaście tysięcy pięćset dwadzieścia jeden |
| Portuguese | doze mil quinhentos e vinte e um |
| Romanian | douăsprezece mii cinci sute douăzeci şi unu |
| Russian | двенадцать тысяч пятьсот двадцать один |
| Serbian | дванаест хиљада петсто двадесет и један |
| Slovak | dvanásť tisíc päťsto dvadsaťjeden |
| Slovene | dvanajst tisuću petsto dvaset ena |
| Spanish | doce mil quinientos veintiuno |
| Swahili | elfu kumi na mbili, mia tano na ishirini na moja |
| Swedish | tolvtusenfemhundratjugoen |
| Thai | หนึ่งหมื่นสองพันห้าร้อยยี่สิบเอ็ด |
| Turkish | on iki bin beş yüz yirmi bir |
| Ukrainian | дванадцять тисяч пʼятсот двадцять один |
| Vietnamese | mười hai nghìn năm trăm hai mươi mốt |
| Number 12521 reversed | 12521 | |
| Unicode Character | U+30E9 | ラ |
| Unix Timestamp | Thu, 01 Jan 1970 03:28:41 +0000 | |