22112220122 has 16 divisors (see below), whose sum is σ = 34165056744. Its totient is φ = 10726848000.

The previous prime is 22112220107. The next prime is 22112220133. The reversal of 22112220122 is 22102221122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5089538281 + 17022681841 = 71341^2 + 130471^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22112220122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730079 + ... + 759762.

Almost surely, 2^22112220122 is an apocalyptic number.

22112220122 is a deficient number, since it is larger than the sum of its proper divisors (12052836622).

22112220122 is a wasteful number, since it uses less digits than its factorization.

22112220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490065.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22112220122 its reverse (22102221122), we get a palindrome (44214441244).

The spelling of 22112220122 in words is "twenty-two billion, one hundred twelve million, two hundred twenty thousand, one hundred twenty-two".