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20211101211112 = 23721713123151743
BaseRepresentation
bin1001001100001110000111…
…00000100001100111101000
32122120011101101122010221021
410212013003200201213220
510122114313402223422
6110552503545422224
74154126633506600
oct446070340414750
978504341563837
1020211101211112
116492530805479
122325068a9a974
13b37b8b4a6386
144dc318837c00
15250b0cbdcdc7
hex1261c38219e8

20211101211112 has 96 divisors (see below), whose sum is σ = 47032304901120. Its totient is φ = 8090144724480.

The previous prime is 20211101211107. The next prime is 20211101211151. The reversal of 20211101211112 is 21111210111202.

It is a super-2 number, since 2×202111012111122 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10702888 + ... + 12448855.

It is an arithmetic number, because the mean of its divisors is an integer number (489919842720).

Almost surely, 220211101211112 is an apocalyptic number.

It is an amenable number.

20211101211112 is an abundant number, since it is smaller than the sum of its proper divisors (26821203690008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20211101211112 is a wasteful number, since it uses less digits than its factorization.

20211101211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23151911 (or 23151900 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 20211101211112 its reverse (21111210111202), we get a palindrome (41322311322314).

The spelling of 20211101211112 in words is "twenty trillion, two hundred eleven billion, one hundred one million, two hundred eleven thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 17 28 34 49 56 68 98 119 131 136 196 238 262 392 476 524 833 917 952 1048 1666 1834 2227 3332 3668 4454 6419 6664 7336 8908 12838 15589 17816 25676 31178 51352 62356 109123 124712 218246 436492 872984 23151743 46303486 92606972 162062201 185213944 324124402 393579631 648248804 787159262 1134435407 1296497608 1574318524 2268870814 2755057417 3032878333 3148637048 4537741628 5510114834 6065756666 9075483256 11020229668 12131513332 19285401919 21230148331 22040459336 24263026664 38570803838 42460296662 51558931661 77141607676 84920593324 103117863322 148611038317 154283215352 169841186648 206235726644 297222076634 360912521627 412471453288 594444153268 721825043254 1188888306536 1443650086508 2526387651389 2887300173016 5052775302778 10105550605556 20211101211112