22200011021200 has 60 divisors (see below), whose sum is σ = 53422534452628. Its totient is φ = 8865518169600.

The previous prime is 22200011021189. The next prime is 22200011021207. The reversal of 22200011021200 is 212011000222.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2221721415936 + 19978289605264 = 1490544^2 + 4469708^2 .

It is not an unprimeable number, because it can be changed into a prime (22200011021207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45023991 + ... + 45514390.

Almost surely, 2^{22200011021200} is an apocalyptic number.

22200011021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200011021200 is an abundant number, since it is smaller than the sum of its proper divisors (31222523431428).

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

22200011021200 is a wasteful number, since it uses less digits than its factorization.

22200011021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90539012 (or 90539001 counting only the distinct ones).

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

Adding to 22200011021200 its reverse (212011000222), we get a palindrome (22412022021422).

The spelling of 22200011021200 in words is "twenty-two trillion, two hundred billion, eleven million, twenty-one thousand, two hundred".