100021000112 has 20 divisors (see below), whose sum is σ = 211408023336. Its totient is φ = 45464090880.

The previous prime is 100021000099. The next prime is 100021000117. The reversal of 100021000112 is 211000120001.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 100021000112.

It is not an unprimeable number, because it can be changed into a prime (100021000117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284150393 + ... + 284150744.

Almost surely, 2^100021000112 is an apocalyptic number.

It is an amenable number.

100021000112 is an abundant number, since it is smaller than the sum of its proper divisors (111387023224).

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

100021000112 is a wasteful number, since it uses less digits than its factorization.

100021000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568301156 (or 568301150 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100021000112 its reverse (211000120001), we get a palindrome (311021120113).

The spelling of 100021000112 in words is "one hundred billion, twenty-one million, one hundred twelve", and thus it is an aban number.