21320132022 has 24 divisors (see below), whose sum is σ = 52792708176. Its totient is φ = 6091466256.

The previous prime is 21320132017. The next prime is 21320132039. The reversal of 21320132022 is 22023102312.

21320132022 is a `hidden beast` number, since 2 + 1 + 320 + 1 + 320 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21320131986 and 21320132004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84603573 + ... + 84603824.

It is an arithmetic number, because the mean of its divisors is an integer number (2199696174).

Almost surely, 2^21320132022 is an apocalyptic number.

21320132022 is an abundant number, since it is smaller than the sum of its proper divisors (31472576154).

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

21320132022 is a wasteful number, since it uses less digits than its factorization.

21320132022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169207412 (or 169207409 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21320132022 its reverse (22023102312), we get a palindrome (43343234334).

The spelling of 21320132022 in words is "twenty-one billion, three hundred twenty million, one hundred thirty-two thousand, twenty-two".