21021330010310 has 64 divisors (see below), whose sum is σ = 43335615997440. Its totient is φ = 7192026132480.

The previous prime is 21021330010309. The next prime is 21021330010333. The reversal of 21021330010310 is 1301003312012.

It is a super-2 number, since 2×21021330010310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 629194886 + ... + 629228294.

It is an arithmetic number, because the mean of its divisors is an integer number (677118999960).

Almost surely, 2^{21021330010310} is an apocalyptic number.

21021330010310 is an abundant number, since it is smaller than the sum of its proper divisors (22314285987130).

21021330010310 is a wasteful number, since it uses less digits than its factorization.

21021330010310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52221.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21021330010310 its reverse (1301003312012), we get a palindrome (22322333322322).

The spelling of 21021330010310 in words is "twenty-one trillion, twenty-one billion, three hundred thirty million, ten thousand, three hundred ten".