21132113332 has 24 divisors (see below), whose sum is σ = 40458751200. Its totient is φ = 9577976160.

The previous prime is 21132113297. The next prime is 21132113341. The reversal of 21132113332 is 23331123112.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672718 + ... + 703429.

It is an arithmetic number, because the mean of its divisors is an integer number (1685781300).

Almost surely, 2^21132113332 is an apocalyptic number.

21132113332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21132113332 is a deficient number, since it is larger than the sum of its proper divisors (19326637868).

21132113332 is a wasteful number, since it uses less digits than its factorization.

21132113332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376511 (or 1376509 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 21132113332 its reverse (23331123112), we get a palindrome (44463236444).

The spelling of 21132113332 in words is "twenty-one billion, one hundred thirty-two million, one hundred thirteen thousand, three hundred thirty-two".