220020330321 has 32 divisors (see below), whose sum is σ = 361417760640. Its totient is φ = 131159649600.

The previous prime is 220020330317. The next prime is 220020330323. The reversal of 220020330321 is 123033020022.

It is a happy number.

It is not a de Polignac number, because 220020330321 - 2² = 220020330317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220020330294 and 220020330303.

It is not an unprimeable number, because it can be changed into a prime (220020330323) 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, 6054090 + ... + 6090323.

It is an arithmetic number, because the mean of its divisors is an integer number (11294305020).

Almost surely, 2^220020330321 is an apocalyptic number.

It is an amenable number.

220020330321 is a deficient number, since it is larger than the sum of its proper divisors (141397430319).

220020330321 is a wasteful number, since it uses less digits than its factorization.

220020330321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12144494 (or 12144488 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 220020330321 its reverse (123033020022), we get a palindrome (343053350343).

The spelling of 220020330321 in words is "two hundred twenty billion, twenty million, three hundred thirty thousand, three hundred twenty-one".