232331232220 has 96 divisors (see below), whose sum is σ = 502792722432. Its totient is φ = 90123840000.

The previous prime is 232331232197. The next prime is 232331232227. The reversal of 232331232220 is 22232133232.

It is a super-2 number, since 2×232331232220² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232331232227) 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, 126886705 + ... + 126888535.

It is an arithmetic number, because the mean of its divisors is an integer number (5237424192).

Almost surely, 2^232331232220 is an apocalyptic number.

232331232220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232331232220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251396361216).

232331232220 is an abundant number, since it is smaller than the sum of its proper divisors (270461490212).

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

232331232220 is a wasteful number, since it uses less digits than its factorization.

232331232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 232331232220 its reverse (22232133232), we get a palindrome (254563365452).

It can be divided in two parts, 2323312 and 32220, that added together give a palindrome (2355532).

The spelling of 232331232220 in words is "two hundred thirty-two billion, three hundred thirty-one million, two hundred thirty-two thousand, two hundred twenty".