220012331 has 8 divisors (see below), whose sum is σ = 274301184. Its totient is φ = 171438120.

The previous prime is 220012297. The next prime is 220012337. The reversal of 220012331 is 133210022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220012331 - 2¹⁸ = 219750187 is a prime.

It is a super-2 number, since 2×220012331² = 96810851584107122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220012337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428575 + ... + 1428728.

It is an arithmetic number, because the mean of its divisors is an integer number (34287648).

Almost surely, 2^220012331 is an apocalyptic number.

220012331 is a deficient number, since it is larger than the sum of its proper divisors (54288853).

220012331 is a wasteful number, since it uses less digits than its factorization.

220012331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857321.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 220012331 is about 14832.8126462920. The cubic root of 220012331 is about 603.6923522438.

Adding to 220012331 its reverse (133210022), we get a palindrome (353222353).

The spelling of 220012331 in words is "two hundred twenty million, twelve thousand, three hundred thirty-one".