220031220132 has 72 divisors (see below), whose sum is σ = 562740148152. Its totient is φ = 72482688000.

The previous prime is 220031220131. The next prime is 220031220151. The reversal of 220031220132 is 231022130022.

220031220132 is a `hidden beast` number, since 2 + 200 + 312 + 20 + 132 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 33453873216 + 186577346916 = 182904^2 + 431946^2 .

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

It is not an unprimeable number, because it can be changed into a prime (220031220131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1911148 + ... + 2023004.

It is an arithmetic number, because the mean of its divisors is an integer number (7815835391).

Almost surely, 2^220031220132 is an apocalyptic number.

It is an amenable number.

220031220132 is an abundant number, since it is smaller than the sum of its proper divisors (342708928020).

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

220031220132 is a wasteful number, since it uses less digits than its factorization.

220031220132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112509 (or 112504 counting only the distinct ones).

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

Adding to 220031220132 its reverse (231022130022), we get a palindrome (451053350154).

The spelling of 220031220132 in words is "two hundred twenty billion, thirty-one million, two hundred twenty thousand, one hundred thirty-two".