331000212 has 24 divisors (see below), whose sum is σ = 773640000. Its totient is φ = 110146816.

The previous prime is 331000193. The next prime is 331000231. The reversal of 331000212 is 212000133.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (331000193) and next prime (331000231).

It is a super-2 number, since 2×331000212² = 219122280688089888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15837 + ... + 30212.

It is an arithmetic number, because the mean of its divisors is an integer number (32235000).

Almost surely, 2^331000212 is an apocalyptic number.

It is an amenable number.

331000212 is an abundant number, since it is smaller than the sum of its proper divisors (442639788).

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

331000212 is a wasteful number, since it uses less digits than its factorization.

331000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46655 (or 46653 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 331000212 is about 18193.4112249462. The cubic root of 331000212 is about 691.7397893435.

Adding to 331000212 its reverse (212000133), we get a palindrome (543000345).

The spelling of 331000212 in words is "three hundred thirty-one million, two hundred twelve", and thus it is an aban number.