22112212201200 has 180 divisors, whose sum is σ = 83711475007368. Its totient is φ = 5360536281600.

The previous prime is 22112212201159. The next prime is 22112212201213. The reversal of 22112212201200 is 210221221122.

It is a happy number.

22112212201200 is a `hidden beast` number, since 2 + 21 + 1 + 221 + 220 + 1 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 279154999 + ... + 279234198.

Almost surely, 2^{22112212201200} is an apocalyptic number.

22112212201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112212201200 is an abundant number, since it is smaller than the sum of its proper divisors (61599262806168).

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

22112212201200 is a wasteful number, since it uses less digits than its factorization.

22112212201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558389232 (or 558389218 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22112212201200 its reverse (210221221122), we get a palindrome (22322433422322).

The spelling of 22112212201200 in words is "twenty-two trillion, one hundred twelve billion, two hundred twelve million, two hundred one thousand, two hundred".