232220021332 has 24 divisors (see below), whose sum is σ = 441978557832. Its totient is φ = 106117296000.

The previous prime is 232220021329. The next prime is 232220021351. The reversal of 232220021332 is 233120022232.

It can be written as a sum of positive squares in 4 ways, for example, as 131251145796 + 100968875536 = 362286^2 + 317756^2 .

It is a super-2 number, since 2×232220021332² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22102519 + ... + 22113022.

It is an arithmetic number, because the mean of its divisors is an integer number (18415773243).

Almost surely, 2^232220021332 is an apocalyptic number.

It is an amenable number.

232220021332 is a deficient number, since it is larger than the sum of its proper divisors (209758536500).

232220021332 is a wasteful number, since it uses less digits than its factorization.

232220021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44215659 (or 44215657 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 232220021332 its reverse (233120022232), we get a palindrome (465340043564).

The spelling of 232220021332 in words is "two hundred thirty-two billion, two hundred twenty million, twenty-one thousand, three hundred thirty-two".