220132312231 has 32 divisors (see below), whose sum is σ = 262021495680. Its totient is φ = 182863110144.

The previous prime is 220132312219. The next prime is 220132312247. The reversal of 220132312231 is 132213231022.

It is not a de Polignac number, because 220132312231 - 2⁹ = 220132311719 is a prime.

It is a super-2 number, since 2×220132312231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220132312331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17341935 + ... + 17354623.

It is an arithmetic number, because the mean of its divisors is an integer number (8188171740).

Almost surely, 2^220132312231 is an apocalyptic number.

220132312231 is a deficient number, since it is larger than the sum of its proper divisors (41889183449).

220132312231 is a wasteful number, since it uses less digits than its factorization.

220132312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16155.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 220132312231 its reverse (132213231022), we get a palindrome (352345543253).

The spelling of 220132312231 in words is "two hundred twenty billion, one hundred thirty-two million, three hundred twelve thousand, two hundred thirty-one".