22288938772 has 12 divisors (see below), whose sum is σ = 39008511136. Its totient is φ = 11143649880.

The previous prime is 22288938677. The next prime is 22288938781. The reversal of 22288938772 is 27783988222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141504 + ... + 254167.

Almost surely, 2^22288938772 is an apocalyptic number.

It is an amenable number.

22288938772 is a deficient number, since it is larger than the sum of its proper divisors (16719572364).

22288938772 is a wasteful number, since it uses less digits than its factorization.

22288938772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409758 (or 409756 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 58.

The spelling of 22288938772 in words is "twenty-two billion, two hundred eighty-eight million, nine hundred thirty-eight thousand, seven hundred seventy-two".