220032232321 has 12 divisors (see below), whose sum is σ = 244113939216. Its totient is φ = 198159857720.

The previous prime is 220032232267. The next prime is 220032232363. The reversal of 220032232321 is 123232230022.

It is not a de Polignac number, because 220032232321 - 2¹⁵ = 220032199553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220032232292 and 220032232301.

It is not an unprimeable number, because it can be changed into a prime (220032232421) 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, 8484475 + ... + 8510368.

It is an arithmetic number, because the mean of its divisors is an integer number (20342828268).

Almost surely, 2^220032232321 is an apocalyptic number.

It is an amenable number.

220032232321 is a deficient number, since it is larger than the sum of its proper divisors (24081706895).

220032232321 is a wasteful number, since it uses less digits than its factorization.

220032232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16994972 (or 16994961 counting only the distinct ones).

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

Adding to 220032232321 its reverse (123232230022), we get a palindrome (343264462343).

The spelling of 220032232321 in words is "two hundred twenty billion, thirty-two million, two hundred thirty-two thousand, three hundred twenty-one".