12002521233121 has 4 divisors (see below), whose sum is σ = 12002586451200. Its totient is φ = 12002456015044.

The previous prime is 12002521233113. The next prime is 12002521233127. The reversal of 12002521233121 is 12133212520021.

12002521233121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12002521233121 - 2³ = 12002521233113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12002521233127) 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, 32332201 + ... + 32701318.

It is an arithmetic number, because the mean of its divisors is an integer number (3000646612800).

Almost surely, 2^{12002521233121} is an apocalyptic number.

It is an amenable number.

12002521233121 is a deficient number, since it is larger than the sum of its proper divisors (65218079).

12002521233121 is an equidigital number, since it uses as much as digits as its factorization.

12002521233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65218078.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 12002521233121 its reverse (12133212520021), we get a palindrome (24135733753142).

The spelling of 12002521233121 in words is "twelve trillion, two billion, five hundred twenty-one million, two hundred thirty-three thousand, one hundred twenty-one".