| Nominal | 11921 |
| Cardinal | eleven thousand nine hundred twenty-one |
Cardinal eleven thousand nine hundred twenty-one | |
| Ordinal | 11,921st |
| Number of digits | 5 |
| Sum of digits | 14 |
| Product of digits | 18 |
| Number parity | Odd |
| Prime factorization | 7 x 13 x 131 |
| Prime factors | 7, 13, 131 |
| Number of distinct prime factors ω(n) | 3 |
| Total number of prime factors Ω(n) | 3 |
| Sum of prime factors | 151 |
| Product of prime factors | 11921 |
| Is 11921 a prime number? | No |
| Is 11921 a semiprime number? | No |
| Is 11921 a Chen prime number? | No |
| Is 11921 a Mersenne prime number? | No |
| Is 11921 a Catalan number? | No |
| Is 11921 a Fibonacci number? | No |
| Is 11921 a Idoneal number? | No |
| Square of 11921 (n2) | 142110241 |
| Cube of 11921 (n3) | 1694096182961 |
| Square root of 11921 | 109.18333206126 |
| Natural Logarithm (ln) of 11921 | 9.386056829718 |
| Decimal Logarithm (log) of 11921 | 4.0763126879769 |
| Sine of 11921 | 0.97441882233852 |
| Cosecant of 11921 | 1.0262527540263 |
| Cosine of 11921 | -0.22473975765852 |
| Secant of 11921 | -4.4495909865643 |
| Tangent of 11921 | -4.3357652090161 |
| Cotangent of 11921 | -0.23063979523627 |
| The spelling of 11921 in words is "eleven thousand nine hundred twenty-one", meaning that: |
| 11921 is not an aban number (as it contains the letter a) |
| 11921 is not an eban number (as it contains the letter e) |
| 11921 is not an iban number (as it contains the letter i) |
| 11921 is not an oban number (as it contains the letter o) |
| 11921 is not a tban number (as it contains the letter t) |
| 11921 is not an uban number (as it contains the letter u) |
| Bengali numerals | ১১৯২১ |
| Eastern Arabic numerals | ١١٬٩٢١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓆼𓍪𓎇𓏺 |
| Khmer numerals | ១១៩២១ |
| Japanese numerals | 一万千九百二十一 |
| Roman numerals | n/a |
| Thai numerals | ๑๑๙๒๑ |
| Arabic | إحدى عشر ألف و تسعة مائة و واحد و عشرون |
| Croatian | jedanaest tisuća devetsto dvadeset i jedan |
| Czech | jedenáct tisíc devět set dvacet jeden |
| Danish | elleve tusinde ni hundrede en og tyve |
| Dutch | elfduizend negenhonderdéénentwintig |
| Estonian | akpe wuiɖekɛ alafa asieke blaeve vɔ ɖekɛ |
| Faroese | ellivu tusin og níggjuhundraðogtjúgoein |
| Filipino | labíng-isáng libó’t siyám na daán at dalawáng pû’t isá |
| Finnish | yksitoistatuhattayhdeksänsataakaksikymmentäyksi |
| French | onze mille neuf cent vingt et un |
| Greek | έντεκα χίλιάδες εννιακόσια είκοσι ένα |
| German | elftausendneunhunderteinundzwanzig |
| Hebrew | אחד עשר אלף תשע מאות עשרים ואחת |
| Hindi | ग्यारह हज़ार नौ सौ इक्कीस |
| Hungarian | tizenegyezerkilencszázhuszonegy |
| Icelandic | ellefu þúsund og níuhundrað og tuttugu og einn |
| Indonesian | sebelas ribu sembilan ratus dua puluh satu |
| Italian | undicimilanovecentoventuno |
| Japanese | 一万千九百二十一 |
| Korean | 만 천구백이십일 |
| Latvian | vienpadsmit tūkstoši deviņsimt divdesmit viens |
| Lithuanian | vienuolika tūkstančių devyni šimtai dvidešimt vienas |
| Norwegian | elleve tusen ni hundre og tjueén |
| Persian | یازده هزار و نهصد و بیست و یک |
| Polish | jedenaście tysięcy dziewięćset dwadzieścia jeden |
| Portuguese | onze mil novecentos e vinte e um |
| Romanian | unsprezece mii nouă sute douăzeci şi unu |
| Russian | одиннадцать тысяч девятьсот двадцать один |
| Serbian | једанаест хиљада деветсто двадесет и један |
| Slovak | jedenásť tisíc deväťsto dvadsaťjeden |
| Slovene | enajst tisuću devetsto dvaset ena |
| Spanish | once mil novecientos veintiuno |
| Swahili | elfu kumi na moja, mia tisa na ishirini na moja |
| Swedish | elvatusenniohundratjugoen |
| Thai | หนึ่งหมื่นหนึ่งพันเก้าร้อยยี่สิบเอ็ด |
| Turkish | on bir bin dokuz yüz yirmi bir |
| Ukrainian | одинадцять тисяч девʼятсот двадцять один |
| Vietnamese | mười một nghìn chín trăm hai mươi mốt |
| Number 11921 reversed | 12911 | |
| Unicode Character | U+2E91 | ⺑ |
| Unix Timestamp | Thu, 01 Jan 1970 03:18:41 +0000 | |