22131311204 has 12 divisors (see below), whose sum is σ = 38903472384. Its totient is φ = 11016033384.

The previous prime is 22131311173. The next prime is 22131311233. The reversal of 22131311204 is 40211313122.

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, 12404552 + ... + 12406335.

It is an arithmetic number, because the mean of its divisors is an integer number (3241956032).

Almost surely, 2^22131311204 is an apocalyptic number.

It is an amenable number.

22131311204 is a deficient number, since it is larger than the sum of its proper divisors (16772161180).

22131311204 is a wasteful number, since it uses less digits than its factorization.

22131311204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24811114 (or 24811112 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22131311204 its reverse (40211313122), we get a palindrome (62342624326).

The spelling of 22131311204 in words is "twenty-two billion, one hundred thirty-one million, three hundred eleven thousand, two hundred four".