21412553110 has 64 divisors (see below), whose sum is σ = 43455025152. Its totient is φ = 7537470336.

The previous prime is 21412553053. The next prime is 21412553117. The reversal of 21412553110 is 1135521412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21412553117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 906267 + ... + 929593.

It is an arithmetic number, because the mean of its divisors is an integer number (678984768).

Almost surely, 2^21412553110 is an apocalyptic number.

21412553110 is an abundant number, since it is smaller than the sum of its proper divisors (22042472042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21412553110 is a wasteful number, since it uses less digits than its factorization.

21412553110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23677.

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 21412553110 in words is "twenty-one billion, four hundred twelve million, five hundred fifty-three thousand, one hundred ten".