2120120033021 has 24 divisors (see below), whose sum is σ = 2230201452960. Its totient is φ = 2013974365536.

The previous prime is 2120120032999. The next prime is 2120120033039. The reversal of 2120120033021 is 1203300210212.

It is not a de Polignac number, because 2120120033021 - 2¹⁸ = 2120119770877 is a prime.

It is a super-2 number, since 2×2120120033021² (a number of 25 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 (2120120033321) 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, 202702490 + ... + 202712948.

It is an arithmetic number, because the mean of its divisors is an integer number (92925060540).

Almost surely, 2^{2120120033021} is an apocalyptic number.

It is an amenable number.

2120120033021 is a deficient number, since it is larger than the sum of its proper divisors (110081419939).

2120120033021 is a wasteful number, since it uses less digits than its factorization.

2120120033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13545 (or 13502 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2120120033021 its reverse (1203300210212), we get a palindrome (3323420243233).

The spelling of 2120120033021 in words is "two trillion, one hundred twenty billion, one hundred twenty million, thirty-three thousand, twenty-one".