331222332 has 24 divisors (see below), whose sum is σ = 883259776. Its totient is φ = 94634928.

The previous prime is 331222327. The next prime is 331222337. The reversal of 331222332 is 233222133.

It is an interprime number because it is at equal distance from previous prime (331222327) and next prime (331222337).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 331222299 and 331222308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331222337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1971478 + ... + 1971645.

Almost surely, 2^331222332 is an apocalyptic number.

It is an amenable number.

331222332 is an abundant number, since it is smaller than the sum of its proper divisors (552037444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331222332 is a wasteful number, since it uses less digits than its factorization.

331222332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943137 (or 3943135 counting only the distinct ones).

The product of its digits is 1296, while the sum is 21.

The square root of 331222332 is about 18199.5146089120. The cubic root of 331222332 is about 691.8944870145.

Adding to 331222332 its reverse (233222133), we get a palindrome (564444465).

The spelling of 331222332 in words is "three hundred thirty-one million, two hundred twenty-two thousand, three hundred thirty-two".