331121100212 has 24 divisors (see below), whose sum is σ = 662879642880. Its totient is φ = 141772448160.

The previous prime is 331121100197. The next prime is 331121100223. The reversal of 331121100212 is 212001121133.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5661839 + ... + 5720022.

It is an arithmetic number, because the mean of its divisors is an integer number (27619985120).

Almost surely, 2^331121100212 is an apocalyptic number.

It is an amenable number.

331121100212 is an abundant number, since it is smaller than the sum of its proper divisors (331758542668).

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

331121100212 is a wasteful number, since it uses less digits than its factorization.

331121100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11382911 (or 11382909 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 331121100212 its reverse (212001121133), we get a palindrome (543122221345).

The spelling of 331121100212 in words is "three hundred thirty-one billion, one hundred twenty-one million, one hundred thousand, two hundred twelve".