22222101111200 has 72 divisors (see below), whose sum is σ = 54645687850572. Its totient is φ = 8823958353920.

The previous prime is 22222101111193. The next prime is 22222101111211. The reversal of 22222101111200 is 211110122222.

It can be written as a sum of positive squares in 6 ways, for example, as 4515948005776 + 17706153105424 = 2125076^2 + 4207868^2 .

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, 101268599 + ... + 101487798.

Almost surely, 2^{22222101111200} is an apocalyptic number.

22222101111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222101111200 is an abundant number, since it is smaller than the sum of its proper divisors (32423586739372).

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

22222101111200 is a wasteful number, since it uses less digits than its factorization.

22222101111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202756554 (or 202756541 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22222101111200 its reverse (211110122222), we get a palindrome (22433211233422).

The spelling of 22222101111200 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred one million, one hundred eleven thousand, two hundred".