22122211212200 has 96 divisors (see below), whose sum is σ = 57029808028320. Its totient is φ = 7912564320000.

The previous prime is 22122211212163. The next prime is 22122211212251. The reversal of 22122211212200 is 221211222122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82288346 + ... + 82556745.

It is an arithmetic number, because the mean of its divisors is an integer number (594060500295).

Almost surely, 2^{22122211212200} is an apocalyptic number.

22122211212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122211212200 is an abundant number, since it is smaller than the sum of its proper divisors (34907596816120).

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

22122211212200 is a wasteful number, since it uses less digits than its factorization.

22122211212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164845179 (or 164845170 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22122211212200 its reverse (221211222122), we get a palindrome (22343422434322).

The spelling of 22122211212200 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred eleven million, two hundred twelve thousand, two hundred".