21332312110 has 16 divisors (see below), whose sum is σ = 38405142432. Its totient is φ = 8531373600.

The previous prime is 21332312077. The next prime is 21332312117. The reversal of 21332312110 is 1121323312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332312117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135306 + ... + 246925.

It is an arithmetic number, because the mean of its divisors is an integer number (2400321402).

Almost surely, 2^21332312110 is an apocalyptic number.

21332312110 is a deficient number, since it is larger than the sum of its proper divisors (17072830322).

21332312110 is a wasteful number, since it uses less digits than its factorization.

21332312110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387819.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21332312110 its reverse (1121323312), we get a palindrome (22453635422).

The spelling of 21332312110 in words is "twenty-one billion, three hundred thirty-two million, three hundred twelve thousand, one hundred ten".