22201000012122 has 32 divisors (see below), whose sum is σ = 44449401110400. Its totient is φ = 7392433671168.

The previous prime is 22201000012097. The next prime is 22201000012133. The reversal of 22201000012122 is 22121000010222.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278276254 + ... + 278356022.

It is an arithmetic number, because the mean of its divisors is an integer number (1389043784700).

Almost surely, 2^{22201000012122} is an apocalyptic number.

22201000012122 is an abundant number, since it is smaller than the sum of its proper divisors (22248401098278).

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

22201000012122 is a wasteful number, since it uses less digits than its factorization.

22201000012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128710.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22201000012122 its reverse (22121000010222), we get a palindrome (44322000022344).

The spelling of 22201000012122 in words is "twenty-two trillion, two hundred one billion, twelve thousand, one hundred twenty-two".