21663203256022 has 8 divisors (see below), whose sum is σ = 32559924735000. Its totient is φ = 10809895011024.

The previous prime is 21663203256017. The next prime is 21663203256049. The reversal of 21663203256022 is 22065230236612.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 10853307247 + ... + 10853309242.

It is an arithmetic number, because the mean of its divisors is an integer number (4069990591875).

Almost surely, 2^{21663203256022} is an apocalyptic number.

21663203256022 is a deficient number, since it is larger than the sum of its proper divisors (10896721478978).

21663203256022 is a wasteful number, since it uses less digits than its factorization.

21663203256022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21706616990.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 21663203256022 in words is "twenty-one trillion, six hundred sixty-three billion, two hundred three million, two hundred fifty-six thousand, twenty-two".