220120331 has 8 divisors (see below), whose sum is σ = 223545120. Its totient is φ = 216706752.

The previous prime is 220120283. The next prime is 220120343. The reversal of 220120331 is 133021022.

It is a happy number.

220120331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 220120331 - 2¹⁸ = 219858187 is a prime.

It is a super-2 number, since 2×220120331² = 96905920239099122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220120231) 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, 42290 + ... + 47208.

It is an arithmetic number, because the mean of its divisors is an integer number (27943140).

Almost surely, 2^220120331 is an apocalyptic number.

220120331 is a deficient number, since it is larger than the sum of its proper divisors (3424789).

220120331 is an equidigital number, since it uses as much as digits as its factorization.

220120331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605.

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

The square root of 220120331 is about 14836.4527768601. The cubic root of 220120331 is about 603.7911165696.

Adding to 220120331 its reverse (133021022), we get a palindrome (353141353).

The spelling of 220120331 in words is "two hundred twenty million, one hundred twenty thousand, three hundred thirty-one".