220330231 has 12 divisors (see below), whose sum is σ = 246159592. Its totient is φ = 197010000.

The previous prime is 220330207. The next prime is 220330241. The reversal of 220330231 is 132033022.

It is not a de Polignac number, because 220330231 - 2⁵ = 220330199 is a prime.

It is a super-2 number, since 2×220330231² = 97090821385026722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220330241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7545 + ... + 22306.

Almost surely, 2^220330231 is an apocalyptic number.

220330231 is a deficient number, since it is larger than the sum of its proper divisors (25829361).

220330231 is a wasteful number, since it uses less digits than its factorization.

220330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29934 (or 29923 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 220330231 is about 14843.5248846088. The cubic root of 220330231 is about 603.9829744993.

Adding to 220330231 its reverse (132033022), we get a palindrome (352363253).

The spelling of 220330231 in words is "two hundred twenty million, three hundred thirty thousand, two hundred thirty-one".