22221010001200 has 60 divisors (see below), whose sum is σ = 53466987748680. Its totient is φ = 8874916180480.

The previous prime is 22221010001123. The next prime is 22221010001243. The reversal of 22221010001200 is 210001012222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41885509 + ... + 42412708.

It is an arithmetic number, because the mean of its divisors is an integer number (891116462478).

Almost surely, 2^{22221010001200} is an apocalyptic number.

22221010001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221010001200 is an abundant number, since it is smaller than the sum of its proper divisors (31245977747480).

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

22221010001200 is a wasteful number, since it uses less digits than its factorization.

22221010001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84298894 (or 84298883 counting only the distinct ones).

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

Adding to 22221010001200 its reverse (210001012222), we get a palindrome (22431011013422).

The spelling of 22221010001200 in words is "twenty-two trillion, two hundred twenty-one billion, ten million, one thousand, two hundred".