220332131 has 2 divisors, whose sum is σ = 220332132. Its totient is φ = 220332130.

The previous prime is 220332109. The next prime is 220332139. The reversal of 220332131 is 131233022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220332131 - 2²⁶ = 153223267 is a prime.

It is a super-2 number, since 2×220332131² = 97092495902002322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220332139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110166065 + 110166066.

It is an arithmetic number, because the mean of its divisors is an integer number (110166066).

Almost surely, 2^220332131 is an apocalyptic number.

220332131 is a deficient number, since it is larger than the sum of its proper divisors (1).

220332131 is an equidigital number, since it uses as much as digits as its factorization.

220332131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 220332131 is about 14843.5888854414. The cubic root of 220332131 is about 603.9847106271.

Adding to 220332131 its reverse (131233022), we get a palindrome (351565153).

The spelling of 220332131 in words is "two hundred twenty million, three hundred thirty-two thousand, one hundred thirty-one".