22130312100 has 72 divisors (see below), whose sum is σ = 68955794880. Its totient is φ = 5447460480.

The previous prime is 22130312093. The next prime is 22130312117. The reversal of 22130312100 is 121303122.

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 22130312100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2833320 + ... + 2841119.

Almost surely, 2^22130312100 is an apocalyptic number.

22130312100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22130312100 is an abundant number, since it is smaller than the sum of its proper divisors (46825482780).

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

22130312100 is a wasteful number, since it uses less digits than its factorization.

22130312100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5674469 (or 5674462 counting only the distinct ones).

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

Adding to 22130312100 its reverse (121303122), we get a palindrome (22251615222).

The spelling of 22130312100 in words is "twenty-two billion, one hundred thirty million, three hundred twelve thousand, one hundred".