20221321331232 has 108 divisors (see below), whose sum is σ = 66892853200446. Its totient is φ = 5777520376320.

The previous prime is 20221321331231. The next prime is 20221321331261. The reversal of 20221321331232 is 23213312312202.

20221321331232 is a `hidden beast` number, since 2 + 0 + 2 + 2 + 1 + 321 + 331 + 2 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18910287171216 + 1311034160016 = 4348596^2 + 1145004^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20221321331196 and 20221321331205.

It is not an unprimeable number, because it can be changed into a prime (20221321331231) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 716444269 + ... + 716472492.

Almost surely, 2^{20221321331232} is an apocalyptic number.

It is an amenable number.

20221321331232 is an abundant number, since it is smaller than the sum of its proper divisors (46671531869214).

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

20221321331232 is a wasteful number, since it uses less digits than its factorization.

20221321331232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432916791 (or 1432916773 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 20221321331232 its reverse (23213312312202), we get a palindrome (43434633643434).

The spelling of 20221321331232 in words is "twenty trillion, two hundred twenty-one billion, three hundred twenty-one million, three hundred thirty-one thousand, two hundred thirty-two".