220234331 has 2 divisors, whose sum is σ = 220234332. Its totient is φ = 220234330.

The previous prime is 220234321. The next prime is 220234373. The reversal of 220234331 is 133432022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220234331 is a prime.

It is a super-2 number, since 2×220234331² = 97006321102035122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220234321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110117165 + 110117166.

It is an arithmetic number, because the mean of its divisors is an integer number (110117166).

Almost surely, 2^220234331 is an apocalyptic number.

220234331 is a deficient number, since it is larger than the sum of its proper divisors (1).

220234331 is an equidigital number, since it uses as much as digits as its factorization.

220234331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 220234331 is about 14840.2941682434. The cubic root of 220234331 is about 603.8953327616.

Adding to 220234331 its reverse (133432022), we get a palindrome (353666353).

The spelling of 220234331 in words is "two hundred twenty million, two hundred thirty-four thousand, three hundred thirty-one".