12012240520111 has 32 divisors (see below), whose sum is σ = 14127013376000. Its totient is φ = 10114686743040.

The previous prime is 12012240520069. The next prime is 12012240520127. The reversal of 12012240520111 is 11102504221021.

It is a cyclic number.

It is not a de Polignac number, because 12012240520111 - 2¹¹ = 12012240518063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012240524111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2417946 + ... + 5465431.

It is an arithmetic number, because the mean of its divisors is an integer number (441469168000).

Almost surely, 2^{12012240520111} is an apocalyptic number.

12012240520111 is a deficient number, since it is larger than the sum of its proper divisors (2114772855889).

12012240520111 is a wasteful number, since it uses less digits than its factorization.

12012240520111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7883639.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 12012240520111 its reverse (11102504221021), we get a palindrome (23114744741132).

The spelling of 12012240520111 in words is "twelve trillion, twelve billion, two hundred forty million, five hundred twenty thousand, one hundred eleven".