112012100100 has 72 divisors (see below), whose sum is σ = 360098167520. Its totient is φ = 29869892640.

The previous prime is 112012100059. The next prime is 112012100141. The reversal of 112012100100 is 1001210211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (112012100059) and next prime (112012100141).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20740282 + ... + 20745681.

Almost surely, 2^112012100100 is an apocalyptic number.

112012100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112012100100 is an abundant number, since it is smaller than the sum of its proper divisors (248086067420).

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

112012100100 is a wasteful number, since it uses less digits than its factorization.

112012100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41485986 (or 41485973 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 112012100100 its reverse (1001210211), we get a palindrome (113013310311).

The spelling of 112012100100 in words is "one hundred twelve billion, twelve million, one hundred thousand, one hundred".