22201001012200 has 96 divisors (see below), whose sum is σ = 51731483895000. Its totient is φ = 8860780544000.

The previous prime is 22201001012173. The next prime is 22201001012219. The reversal of 22201001012200 is 221010010222.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 6953209967236 + 15247791044964 = 2636894^2 + 3904842^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180656376 + ... + 180779224.

Almost surely, 2^{22201001012200} is an apocalyptic number.

22201001012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201001012200 is an abundant number, since it is smaller than the sum of its proper divisors (29530482882800).

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

22201001012200 is a wasteful number, since it uses less digits than its factorization.

22201001012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124855 (or 124846 counting only the distinct ones).

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

Adding to 22201001012200 its reverse (221010010222), we get a palindrome (22422011022422).

The spelling of 22201001012200 in words is "twenty-two trillion, two hundred one billion, one million, twelve thousand, two hundred".