220220232331 has 4 divisors (see below), whose sum is σ = 240240253464. Its totient is φ = 200200211200.

The previous prime is 220220232311. The next prime is 220220232341. The reversal of 220220232331 is 133232022022.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 220220232331 - 2⁵ = 220220232299 is a prime.

It is a super-3 number, since 3×220220232331³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220220232301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10010010550 + ... + 10010010571.

It is an arithmetic number, because the mean of its divisors is an integer number (60060063366).

Almost surely, 2^220220232331 is an apocalyptic number.

220220232331 is a deficient number, since it is larger than the sum of its proper divisors (20020021133).

220220232331 is a wasteful number, since it uses less digits than its factorization.

220220232331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20020021132.

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

Adding to 220220232331 its reverse (133232022022), we get a palindrome (353452254353).

The spelling of 220220232331 in words is "two hundred twenty billion, two hundred twenty million, two hundred thirty-two thousand, three hundred thirty-one".