21620600422 has 8 divisors (see below), whose sum is σ = 34137790200. Its totient is φ = 10241337024.

The previous prime is 21620600401. The next prime is 21620600447. The reversal of 21620600422 is 22400602612.

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, 284481547 + ... + 284481622.

It is an arithmetic number, because the mean of its divisors is an integer number (4267223775).

Almost surely, 2^21620600422 is an apocalyptic number.

21620600422 is a deficient number, since it is larger than the sum of its proper divisors (12517189778).

21620600422 is a wasteful number, since it uses less digits than its factorization.

21620600422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568963190.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 21620600422 in words is "twenty-one billion, six hundred twenty million, six hundred thousand, four hundred twenty-two".