220044433231 has 12 divisors (see below), whose sum is σ = 256413710208. Its totient is φ = 188282610432.

The previous prime is 220044433201. The next prime is 220044433237. The reversal of 220044433231 is 132334440022.

It is not a de Polignac number, because 220044433231 - 2¹⁹ = 220043908943 is a prime.

It is a super-2 number, since 2×220044433231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220044433231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220044433237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3863151 + ... + 3919696.

It is an arithmetic number, because the mean of its divisors is an integer number (21367809184).

Almost surely, 2^220044433231 is an apocalyptic number.

220044433231 is a deficient number, since it is larger than the sum of its proper divisors (36369276977).

220044433231 is an equidigital number, since it uses as much as digits as its factorization.

220044433231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7783438 (or 7783431 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 220044433231 its reverse (132334440022), we get a palindrome (352378873253).

The spelling of 220044433231 in words is "two hundred twenty billion, forty-four million, four hundred thirty-three thousand, two hundred thirty-one".