22111100012200 has 48 divisors (see below), whose sum is σ = 51783550713180. Its totient is φ = 8779882037760.

The previous prime is 22111100012191. The next prime is 22111100012251. The reversal of 22111100012200 is 221000111122.

It can be written as a sum of positive squares in 6 ways, for example, as 15030679271364 + 7080420740836 = 3876942^2 + 2660906^2 .

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, 403459827 + ... + 403514626.

Almost surely, 2^{22111100012200} is an apocalyptic number.

22111100012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111100012200 is an abundant number, since it is smaller than the sum of its proper divisors (29672450700980).

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

22111100012200 is a wasteful number, since it uses less digits than its factorization.

22111100012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806974606 (or 806974597 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22111100012200 its reverse (221000111122), we get a palindrome (22332100123322).

The spelling of 22111100012200 in words is "twenty-two trillion, one hundred eleven billion, one hundred million, twelve thousand, two hundred".