21132332112 has 40 divisors (see below), whose sum is σ = 55861441504. Its totient is φ = 6880293504.

The previous prime is 21132332101. The next prime is 21132332141. The reversal of 21132332112 is 21123323112.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5117203 + ... + 5121330.

Almost surely, 2^21132332112 is an apocalyptic number.

It is an amenable number.

21132332112 is an abundant number, since it is smaller than the sum of its proper divisors (34729109392).

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

21132332112 is a wasteful number, since it uses less digits than its factorization.

21132332112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10238587 (or 10238581 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 21132332112 its reverse (21123323112), we get a palindrome (42255655224).

The spelling of 21132332112 in words is "twenty-one billion, one hundred thirty-two million, three hundred thirty-two thousand, one hundred twelve".