100021112000 has 112 divisors (see below), whose sum is σ = 258472423872. Its totient is φ = 38268876800.

The previous prime is 100021111979. The next prime is 100021112003. The reversal of 100021112000 is 211120001.

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

It is not an unprimeable number, because it can be changed into a prime (100021112003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87797 + ... + 455796.

Almost surely, 2^100021112000 is an apocalyptic number.

100021112000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100021112000 is an abundant number, since it is smaller than the sum of its proper divisors (158451311872).

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

100021112000 is an equidigital number, since it uses as much as digits as its factorization.

100021112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543643 (or 543623 counting only the distinct ones).

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

Adding to 100021112000 its reverse (211120001), we get a palindrome (100232232001).

The spelling of 100021112000 in words is "one hundred billion, twenty-one million, one hundred twelve thousand".