21133022132 has 24 divisors (see below), whose sum is σ = 37445942856. Its totient is φ = 10434981888.

The previous prime is 21133022117. The next prime is 21133022149. The reversal of 21133022132 is 23122033112.

It can be written as a sum of positive squares in 4 ways, for example, as 8551810576 + 12581211556 = 92476^2 + 112166^2 .

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, 5858 + ... + 205670.

It is an arithmetic number, because the mean of its divisors is an integer number (1560247619).

Almost surely, 2^21133022132 is an apocalyptic number.

It is an amenable number.

21133022132 is a deficient number, since it is larger than the sum of its proper divisors (16312920724).

21133022132 is a wasteful number, since it uses less digits than its factorization.

21133022132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200147 (or 200145 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21133022132 its reverse (23122033112), we get a palindrome (44255055244).

The spelling of 21133022132 in words is "twenty-one billion, one hundred thirty-three million, twenty-two thousand, one hundred thirty-two".