22121037122 has 18 divisors (see below), whose sum is σ = 33393978579. Its totient is φ = 10990160500.

The previous prime is 22121037119. The next prime is 22121037137. The reversal of 22121037122 is 22173012122.

It can be written as a sum of positive squares in only one way, i.e., 11060518561 + 11060518561 = 105169^2 + 105169^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105169.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 52794629 + ... + 52795047.

Almost surely, 2^22121037122 is an apocalyptic number.

22121037122 is a deficient number, since it is larger than the sum of its proper divisors (11272941457).

22121037122 is an frugal number, since it uses more digits than its factorization.

22121037122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 22121037122 its reverse (22173012122), we get a palindrome (44294049244).

The spelling of 22121037122 in words is "twenty-two billion, one hundred twenty-one million, thirty-seven thousand, one hundred twenty-two".