331022121013 has 16 divisors (see below), whose sum is σ = 360487480320. Its totient is φ = 303006102784.

The previous prime is 331022121011. The next prime is 331022121113. The reversal of 331022121013 is 310121220133.

It is a cyclic number.

It is not a de Polignac number, because 331022121013 - 2¹ = 331022121011 is a prime.

It is a super-2 number, since 2×331022121013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331022121011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2120581 + ... + 2271322.

It is an arithmetic number, because the mean of its divisors is an integer number (22530467520).

Almost surely, 2^331022121013 is an apocalyptic number.

It is an amenable number.

331022121013 is a deficient number, since it is larger than the sum of its proper divisors (29465359307).

331022121013 is a wasteful number, since it uses less digits than its factorization.

331022121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392068.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 331022121013 its reverse (310121220133), we get a palindrome (641143341146).

The spelling of 331022121013 in words is "three hundred thirty-one billion, twenty-two million, one hundred twenty-one thousand, thirteen".