33121242020121 has 4 divisors (see below), whose sum is σ = 44161656026832. Its totient is φ = 22080828013412.

The previous prime is 33121242020071. The next prime is 33121242020179. The reversal of 33121242020121 is 12102024212133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33121242020121 - 2⁷ = 33121242019993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33121242020091 and 33121242020100.

It is not an unprimeable number, because it can be changed into a prime (33121242020021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5520207003351 + ... + 5520207003356.

It is an arithmetic number, because the mean of its divisors is an integer number (11040414006708).

Almost surely, 2^{33121242020121} is an apocalyptic number.

It is an amenable number.

33121242020121 is a deficient number, since it is larger than the sum of its proper divisors (11040414006711).

33121242020121 is a wasteful number, since it uses less digits than its factorization.

33121242020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11040414006710.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 33121242020121 its reverse (12102024212133), we get a palindrome (45223266232254).

The spelling of 33121242020121 in words is "thirty-three trillion, one hundred twenty-one billion, two hundred forty-two million, twenty thousand, one hundred twenty-one".