331221213211113 has 24 divisors (see below), whose sum is σ = 480547511750592. Its totient is φ = 219838166072928.

The previous prime is 331221213211079. The next prime is 331221213211139. The reversal of 331221213211113 is 311112312122133.

331221213211113 is a `hidden beast` number, since 3 + 3 + 1 + 221 + 2 + 1 + 321 + 1 + 113 = 666.

It is not a de Polignac number, because 331221213211113 - 2¹⁶ = 331221213145577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331221213211013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39558631 + ... + 47194572.

It is an arithmetic number, because the mean of its divisors is an integer number (20022812989608).

Almost surely, 2^{331221213211113} is an apocalyptic number.

It is an amenable number.

331221213211113 is a deficient number, since it is larger than the sum of its proper divisors (149326298539479).

331221213211113 is a wasteful number, since it uses less digits than its factorization.

331221213211113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86755085 (or 86755082 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

Adding to 331221213211113 its reverse (311112312122133), we get a palindrome (642333525333246).

The spelling of 331221213211113 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, two hundred thirteen million, two hundred eleven thousand, one hundred thirteen".