22131836732 has 6 divisors (see below), whose sum is σ = 38730714288. Its totient is φ = 11065918364.

The previous prime is 22131836731. The next prime is 22131836791. The reversal of 22131836732 is 23763813122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131836731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2766479588 + ... + 2766479595.

It is an arithmetic number, because the mean of its divisors is an integer number (6455119048).

Almost surely, 2^22131836732 is an apocalyptic number.

It is an amenable number.

22131836732 is a deficient number, since it is larger than the sum of its proper divisors (16598877556).

22131836732 is a wasteful number, since it uses less digits than its factorization.

22131836732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532959187 (or 5532959185 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The spelling of 22131836732 in words is "twenty-two billion, one hundred thirty-one million, eight hundred thirty-six thousand, seven hundred thirty-two".