21021220483708 has 48 divisors (see below), whose sum is σ = 38257846824960. Its totient is φ = 10094266526400.

The previous prime is 21021220483547. The next prime is 21021220483843. The reversal of 21021220483708 is 80738402212012.

It is a congruent number.

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, 374474803 + ... + 374530933.

It is an arithmetic number, because the mean of its divisors is an integer number (797038475520).

Almost surely, 2^{21021220483708} is an apocalyptic number.

It is an amenable number.

21021220483708 is a deficient number, since it is larger than the sum of its proper divisors (17236626341252).

21021220483708 is a wasteful number, since it uses less digits than its factorization.

21021220483708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73258 (or 73256 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 21021220483708 in words is "twenty-one trillion, twenty-one billion, two hundred twenty million, four hundred eighty-three thousand, seven hundred eight".