22112122123200 has 84 divisors (see below), whose sum is σ = 72546187348280. Its totient is φ = 5896565898240.

The previous prime is 22112122123187. The next prime is 22112122123229. The reversal of 22112122123200 is 232122121122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2303341255 + ... + 2303350854.

Almost surely, 2^{22112122123200} is an apocalyptic number.

22112122123200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112122123200 is an abundant number, since it is smaller than the sum of its proper divisors (50434065225080).

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

22112122123200 is a wasteful number, since it uses less digits than its factorization.

22112122123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606692134 (or 4606692119 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 22112122123200 its reverse (232122121122), we get a palindrome (22344244244322).

The spelling of 22112122123200 in words is "twenty-two trillion, one hundred twelve billion, one hundred twenty-two million, one hundred twenty-three thousand, two hundred".