220000331 has 2 divisors, whose sum is σ = 220000332. Its totient is φ = 220000330.

The previous prime is 220000307. The next prime is 220000357. The reversal of 220000331 is 133000022.

220000331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220000331 - 2²² = 215806027 is a prime.

It is a super-2 number, since 2×220000331² = 96800291280219122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220002331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000165 + 110000166.

It is an arithmetic number, because the mean of its divisors is an integer number (110000166).

Almost surely, 2^220000331 is an apocalyptic number.

220000331 is a deficient number, since it is larger than the sum of its proper divisors (1).

220000331 is an equidigital number, since it uses as much as digits as its factorization.

220000331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 220000331 is about 14832.4081321949. The cubic root of 220000331 is about 603.6813764348.

Adding to 220000331 its reverse (133000022), we get a palindrome (353000353).

The spelling of 220000331 in words is "two hundred twenty million, three hundred thirty-one", and thus it is an aban number.