12240134002121 has 32 divisors (see below), whose sum is σ = 13331711358720. Its totient is φ = 11201399193600.

The previous prime is 12240134002099. The next prime is 12240134002153. The reversal of 12240134002121 is 12120043104221.

12240134002121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12240134002121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12240134002021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20858885 + ... + 21437661.

It is an arithmetic number, because the mean of its divisors is an integer number (416615979960).

Almost surely, 2^{12240134002121} is an apocalyptic number.

It is an amenable number.

12240134002121 is a deficient number, since it is larger than the sum of its proper divisors (1091577356599).

12240134002121 is a wasteful number, since it uses less digits than its factorization.

12240134002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579185.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12240134002121 its reverse (12120043104221), we get a palindrome (24360177106342).

The spelling of 12240134002121 in words is "twelve trillion, two hundred forty billion, one hundred thirty-four million, two thousand, one hundred twenty-one".