330121242231021 has 20 divisors (see below), whose sum is σ = 493147156593564. Its totient is φ = 220079454192000.

The previous prime is 330121242230987. The next prime is 330121242231073. The reversal of 330121242231021 is 120132242121033.

330121242231021 is a `hidden beast` number, since 3 + 3 + 0 + 1 + 212 + 422 + 3 + 1 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 232894641504996 + 97226600726025 = 15260886^2 + 9860355^2 .

It is not a de Polignac number, because 330121242231021 - 2⁷ = 330121242230893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330121242231421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 416011 + ... + 25698551.

Almost surely, 2^{330121242231021} is an apocalyptic number.

It is an amenable number.

330121242231021 is a deficient number, since it is larger than the sum of its proper divisors (163025914362543).

330121242231021 is a wasteful number, since it uses less digits than its factorization.

330121242231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25443754 (or 25443745 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 330121242231021 its reverse (120132242121033), we get a palindrome (450253484352054).

The spelling of 330121242231021 in words is "three hundred thirty trillion, one hundred twenty-one billion, two hundred forty-two million, two hundred thirty-one thousand, twenty-one".