22212020012100 has 36 divisors (see below), whose sum is σ = 64266777902544. Its totient is φ = 5923205336480.

The previous prime is 22212020012057. The next prime is 22212020012227. The reversal of 22212020012100 is 121002021222.

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 22212020012100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37020033054 + ... + 37020033653.

Almost surely, 2^{22212020012100} is an apocalyptic number.

22212020012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212020012100 is an abundant number, since it is smaller than the sum of its proper divisors (42054757890444).

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

22212020012100 is a wasteful number, since it uses less digits than its factorization.

22212020012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74040066724 (or 74040066717 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22212020012100 its reverse (121002021222), we get a palindrome (22333022033322).

The spelling of 22212020012100 in words is "twenty-two trillion, two hundred twelve billion, twenty million, twelve thousand, one hundred".