331222133 has 12 divisors (see below), whose sum is σ = 368173260. Its totient is φ = 297718080.

The previous prime is 331222109. The next prime is 331222159.

331222133 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 98446084 + 232776049 = 9922^2 + 15257^2 .

It is a de Polignac number, because none of the positive numbers 2^k-331222133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331222183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4610 + ... + 26147.

It is an arithmetic number, because the mean of its divisors is an integer number (30681105).

Almost surely, 2^331222133 is an apocalyptic number.

It is an amenable number.

331222133 is a deficient number, since it is larger than the sum of its proper divisors (36951127).

331222133 is a wasteful number, since it uses less digits than its factorization.

331222133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30868 (or 30857 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 331222133 is about 18199.5091417324. The cubic root of 331222133 is about 691.8943484499.

The spelling of 331222133 in words is "three hundred thirty-one million, two hundred twenty-two thousand, one hundred thirty-three".