22031132100 has 72 divisors (see below), whose sum is σ = 64788436608. Its totient is φ = 5778652800.

The previous prime is 22031132063. The next prime is 22031132147. The reversal of 22031132100 is 123113022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22031132100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 583644 + ... + 620243.

Almost surely, 2^22031132100 is an apocalyptic number.

22031132100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22031132100 is an abundant number, since it is smaller than the sum of its proper divisors (42757304508).

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

22031132100 is a wasteful number, since it uses less digits than its factorization.

22031132100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203965 (or 1203958 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 22031132100 its reverse (123113022), we get a palindrome (22154245122).

The spelling of 22031132100 in words is "twenty-two billion, thirty-one million, one hundred thirty-two thousand, one hundred".