331120022121 has 16 divisors (see below), whose sum is σ = 560626492800. Its totient is φ = 189211441104.

The previous prime is 331120022089. The next prime is 331120022159. The reversal of 331120022121 is 121220021133.

331120022121 is a `hidden beast` number, since 331 + 120 + 0 + 2 + 212 + 1 = 666.

It is not a de Polignac number, because 331120022121 - 2⁵ = 331120022089 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 331120022094 and 331120022103.

It is not an unprimeable number, because it can be changed into a prime (331120032121) 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, 875978706 + ... + 875979083.

It is an arithmetic number, because the mean of its divisors is an integer number (35039155800).

Almost surely, 2^331120022121 is an apocalyptic number.

It is an amenable number.

331120022121 is a deficient number, since it is larger than the sum of its proper divisors (229506470679).

331120022121 is a wasteful number, since it uses less digits than its factorization.

331120022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751957805 (or 1751957799 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 331120022121 its reverse (121220021133), we get a palindrome (452340043254).

The spelling of 331120022121 in words is "three hundred thirty-one billion, one hundred twenty million, twenty-two thousand, one hundred twenty-one".