331222223197 has 2 divisors, whose sum is σ = 331222223198. Its totient is φ = 331222223196.

The previous prime is 331222223147. The next prime is 331222223231. The reversal of 331222223197 is 791322222133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237062845881 + 94159377316 = 486891^2 + 306854^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331222223197 is a prime.

It is a super-2 number, since 2×331222223197² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331222223107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165611111598 + 165611111599.

It is an arithmetic number, because the mean of its divisors is an integer number (165611111599).

Almost surely, 2^331222223197 is an apocalyptic number.

It is an amenable number.

331222223197 is a deficient number, since it is larger than the sum of its proper divisors (1).

331222223197 is an equidigital number, since it uses as much as digits as its factorization.

331222223197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The spelling of 331222223197 in words is "three hundred thirty-one billion, two hundred twenty-two million, two hundred twenty-three thousand, one hundred ninety-seven".