21722114556808 has 64 divisors (see below), whose sum is σ = 41816979025920. Its totient is φ = 10574833684800.

The previous prime is 21722114556799. The next prime is 21722114556841. The reversal of 21722114556808 is 80865541122712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119230441 + ... + 119412487.

It is an arithmetic number, because the mean of its divisors is an integer number (653390297280).

Almost surely, 2^{21722114556808} is an apocalyptic number.

It is an amenable number.

21722114556808 is a deficient number, since it is larger than the sum of its proper divisors (20094864469112).

21722114556808 is a wasteful number, since it uses less digits than its factorization.

21722114556808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184738 (or 184734 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 52.

The spelling of 21722114556808 in words is "twenty-one trillion, seven hundred twenty-two billion, one hundred fourteen million, five hundred fifty-six thousand, eight hundred eight".