331212212113 has 16 divisors (see below), whose sum is σ = 347525510400. Its totient is φ = 315411108480.

The previous prime is 331212212101. The next prime is 331212212119. The reversal of 331212212113 is 311212212133.

It is a cyclic number.

It is not a de Polignac number, because 331212212113 - 2³³ = 322622277521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331212212119) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 423348 + ... + 917413.

It is an arithmetic number, because the mean of its divisors is an integer number (21720344400).

Almost surely, 2^331212212113 is an apocalyptic number.

It is an amenable number.

331212212113 is a deficient number, since it is larger than the sum of its proper divisors (16313298287).

331212212113 is a wasteful number, since it uses less digits than its factorization.

331212212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340952.

The product of its digits is 432, while the sum is 22.

Adding to 331212212113 its reverse (311212212133), we get a palindrome (642424424246).

The spelling of 331212212113 in words is "three hundred thirty-one billion, two hundred twelve million, two hundred twelve thousand, one hundred thirteen".