22200001121200 has 120 divisors (see below), whose sum is σ = 61789858875488. Its totient is φ = 7507162736640.

The previous prime is 22200001121191. The next prime is 22200001121201. The reversal of 22200001121200 is 212110000222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22200001121201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54100887 + ... + 54509686.

Almost surely, 2^{22200001121200} is an apocalyptic number.

22200001121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200001121200 is an abundant number, since it is smaller than the sum of its proper divisors (39589857754288).

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

22200001121200 is a wasteful number, since it uses less digits than its factorization.

22200001121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108610671 (or 108610660 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22200001121200 its reverse (212110000222), we get a palindrome (22412111121422).

The spelling of 22200001121200 in words is "twenty-two trillion, two hundred billion, one million, one hundred twenty-one thousand, two hundred".