331332212231 has 2 divisors, whose sum is σ = 331332212232. Its totient is φ = 331332212230.

The previous prime is 331332212203. The next prime is 331332212243. The reversal of 331332212231 is 132212233133.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 331332212231 - 2³⁸ = 56454305287 is a prime.

It is a super-2 number, since 2×331332212231² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 331332212231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331332262231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165666106115 + 165666106116.

It is an arithmetic number, because the mean of its divisors is an integer number (165666106116).

Almost surely, 2^331332212231 is an apocalyptic number.

331332212231 is a deficient number, since it is larger than the sum of its proper divisors (1).

331332212231 is an equidigital number, since it uses as much as digits as its factorization.

331332212231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 26.

Adding to 331332212231 its reverse (132212233133), we get a palindrome (463544445364).

The spelling of 331332212231 in words is "three hundred thirty-one billion, three hundred thirty-two million, two hundred twelve thousand, two hundred thirty-one".