21104225510 has 64 divisors (see below), whose sum is σ = 41064693120. Its totient is φ = 7779870720.

The previous prime is 21104225497. The next prime is 21104225521. The reversal of 21104225510 is 1552240112.

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, 2370287 + ... + 2379173.

It is an arithmetic number, because the mean of its divisors is an integer number (641635830).

Almost surely, 2^21104225510 is an apocalyptic number.

21104225510 is a deficient number, since it is larger than the sum of its proper divisors (19960467610).

21104225510 is a wasteful number, since it uses less digits than its factorization.

21104225510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9201.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 21104225510 its reverse (1552240112), we get a palindrome (22656465622).

The spelling of 21104225510 in words is "twenty-one billion, one hundred four million, two hundred twenty-five thousand, five hundred ten".