22121131332 has 12 divisors (see below), whose sum is σ = 51615973136. Its totient is φ = 7373710440.

The previous prime is 22121131321. The next prime is 22121131367. The reversal of 22121131332 is 23313112122.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a junction number, because it is equal to n+sod(n) for n = 22121131299 and 22121131308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921713794 + ... + 921713817.

Almost surely, 2^22121131332 is an apocalyptic number.

It is an amenable number.

22121131332 is an abundant number, since it is smaller than the sum of its proper divisors (29494841804).

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

22121131332 is a wasteful number, since it uses less digits than its factorization.

22121131332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843427618 (or 1843427616 counting only the distinct ones).

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

Adding to 22121131332 its reverse (23313112122), we get a palindrome (45434243454).

The spelling of 22121131332 in words is "twenty-two billion, one hundred twenty-one million, one hundred thirty-one thousand, three hundred thirty-two".