331121020012 has 6 divisors (see below), whose sum is σ = 579461785028. Its totient is φ = 165560510004.

The previous prime is 331121019967. The next prime is 331121020073. The reversal of 331121020012 is 210020121133.

It is a super-2 number, since 2×331121020012² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41390127498 + ... + 41390127505.

Almost surely, 2^331121020012 is an apocalyptic number.

It is an amenable number.

331121020012 is a deficient number, since it is larger than the sum of its proper divisors (248340765016).

331121020012 is a wasteful number, since it uses less digits than its factorization.

331121020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82780255007 (or 82780255005 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 331121020012 its reverse (210020121133), we get a palindrome (541141141145).

The spelling of 331121020012 in words is "three hundred thirty-one billion, one hundred twenty-one million, twenty thousand, twelve".