331222132001231 has 4 divisors (see below), whose sum is σ = 332176662641352. Its totient is φ = 330267601361112.

The previous prime is 331222132001179. The next prime is 331222132001261. The reversal of 331222132001231 is 132100231222133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331222132001231 is a prime.

It is a super-2 number, since 2×331222132001231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331222132001231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331222132001261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477265319540 + ... + 477265320233.

It is an arithmetic number, because the mean of its divisors is an integer number (83044165660338).

Almost surely, 2^{331222132001231} is an apocalyptic number.

331222132001231 is a deficient number, since it is larger than the sum of its proper divisors (954530640121).

331222132001231 is an equidigital number, since it uses as much as digits as its factorization.

331222132001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954530640120.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 331222132001231 its reverse (132100231222133), we get a palindrome (463322363223364).

The spelling of 331222132001231 in words is "three hundred thirty-one trillion, two hundred twenty-two billion, one hundred thirty-two million, one thousand, two hundred thirty-one".