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112100101220 = 225193203914243
BaseRepresentation
bin110100001100110101…
…1111100110001100100
3101201100110010011122202
41220121223330301210
53314040111214340
6123255330114032
711045642065352
oct1503153746144
9351313104582
10112100101220
11435a5648258
121988611b918
13a756621b53
1455d60987d2
152db167ec15
hex1a19afcc64

112100101220 has 48 divisors (see below), whose sum is σ = 236762628480. Its totient is φ = 44582701056.

The previous prime is 112100101219. The next prime is 112100101229. The reversal of 112100101220 is 22101001211.

It is not an unprimeable number, because it can be changed into a prime (112100101229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7863419 + ... + 7877661.

It is an arithmetic number, because the mean of its divisors is an integer number (4932554760).

Almost surely, 2112100101220 is an apocalyptic number.

112100101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112100101220 is an abundant number, since it is smaller than the sum of its proper divisors (124662527260).

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

112100101220 is a wasteful number, since it uses less digits than its factorization.

112100101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16484 (or 16482 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 112100101220 its reverse (22101001211), we get a palindrome (134201102431).

The spelling of 112100101220 in words is "one hundred twelve billion, one hundred million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 193 386 772 965 1930 2039 3860 4078 8156 10195 14243 20390 28486 40780 56972 71215 142430 284860 393527 787054 1574108 1967635 2748899 3935270 5497798 7870540 10995596 13744495 27488990 29041477 54977980 58082954 116165908 145207385 290414770 580829540 5605005061 11210010122 22420020244 28025025305 56050050610 112100101220