331121120212 has 24 divisors (see below), whose sum is σ = 610889541696. Its totient is φ = 156729669888.

The previous prime is 331121120207. The next prime is 331121120249. The reversal of 331121120212 is 212021121133.

It is a self number, because there is not a number n which added to its sum of digits gives 331121120212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18543358 + ... + 18561205.

It is an arithmetic number, because the mean of its divisors is an integer number (25453730904).

Almost surely, 2^331121120212 is an apocalyptic number.

It is an amenable number.

331121120212 is a deficient number, since it is larger than the sum of its proper divisors (279768421484).

331121120212 is a wasteful number, since it uses less digits than its factorization.

331121120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37104687 (or 37104685 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 331121120212 its reverse (212021121133), we get a palindrome (543142241345).

The spelling of 331121120212 in words is "three hundred thirty-one billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twelve".