22123133204 has 24 divisors (see below), whose sum is σ = 38854466280. Its totient is φ = 11021930496.

The previous prime is 22123133191. The next prime is 22123133251. The reversal of 22123133204 is 40233132122.

It can be written as a sum of positive squares in 4 ways, for example, as 4685402500 + 17437730704 = 68450^2 + 132052^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22123133204.

It is a congruent number.

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, 1276952 + ... + 1294160.

It is an arithmetic number, because the mean of its divisors is an integer number (1618936095).

Almost surely, 2^22123133204 is an apocalyptic number.

It is an amenable number.

22123133204 is a deficient number, since it is larger than the sum of its proper divisors (16731333076).

22123133204 is a wasteful number, since it uses less digits than its factorization.

22123133204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18347 (or 18345 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 22123133204 its reverse (40233132122), we get a palindrome (62356265326).

The spelling of 22123133204 in words is "twenty-two billion, one hundred twenty-three million, one hundred thirty-three thousand, two hundred four".