21102010310 has 16 divisors (see below), whose sum is σ = 39208897152. Its totient is φ = 8168520000.

The previous prime is 21102010301. The next prime is 21102010333. The reversal of 21102010310 is 1301020112.

It is a super-2 number, since 2×21102010310² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21102010291 and 21102010300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34035191 + ... + 34035810.

It is an arithmetic number, because the mean of its divisors is an integer number (2450556072).

Almost surely, 2^21102010310 is an apocalyptic number.

21102010310 is a deficient number, since it is larger than the sum of its proper divisors (18106886842).

21102010310 is a wasteful number, since it uses less digits than its factorization.

21102010310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68071039.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21102010310 its reverse (1301020112), we get a palindrome (22403030422).

The spelling of 21102010310 in words is "twenty-one billion, one hundred two million, ten thousand, three hundred ten".