33232020121 has 12 divisors (see below), whose sum is σ = 35343290268. Its totient is φ = 31240466432.

The previous prime is 33232020113. The next prime is 33232020127. The reversal of 33232020121 is 12102023233.

33232020121 = 10579² + 10580² + ... + 10867².

It can be written as a sum of positive squares in 6 ways, for example, as 18149478400 + 15082541721 = 134720^2 + 122811^2 .

It is not a de Polignac number, because 33232020121 - 2³ = 33232020113 is a prime.

It is a super-2 number, since 2×33232020121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33232020127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180585 + ... + 314761.

It is an arithmetic number, because the mean of its divisors is an integer number (2945274189).

Almost surely, 2^33232020121 is an apocalyptic number.

It is an amenable number.

33232020121 is a deficient number, since it is larger than the sum of its proper divisors (2111270147).

33232020121 is a wasteful number, since it uses less digits than its factorization.

33232020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135068 (or 135051 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 33232020121 its reverse (12102023233), we get a palindrome (45334043354).

The spelling of 33232020121 in words is "thirty-three billion, two hundred thirty-two million, twenty thousand, one hundred twenty-one".