21233322132 has 48 divisors (see below), whose sum is σ = 54347127744. Its totient is φ = 6398784000.

The previous prime is 21233322113. The next prime is 21233322191. The reversal of 21233322132 is 23122333212.

It is a super-2 number, since 2×21233322132² (a number of 21 digits) contains 22 as substring.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420469 + ... + 468252.

It is an arithmetic number, because the mean of its divisors is an integer number (1132231828).

Almost surely, 2^21233322132 is an apocalyptic number.

21233322132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21233322132 is an abundant number, since it is smaller than the sum of its proper divisors (33113805612).

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

21233322132 is a wasteful number, since it uses less digits than its factorization.

21233322132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888920 (or 888918 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 21233322132 its reverse (23122333212), we get a palindrome (44355655344).

The spelling of 21233322132 in words is "twenty-one billion, two hundred thirty-three million, three hundred twenty-two thousand, one hundred thirty-two".