12110052331521 has 16 divisors (see below), whose sum is σ = 18115000974720. Its totient is φ = 7994986003440.

The previous prime is 12110052331469. The next prime is 12110052331549. The reversal of 12110052331521 is 12513325001121.

12110052331521 is a `hidden beast` number, since 1 + 2 + 1 + 100 + 5 + 2 + 3 + 31 + 521 = 666.

It is not a de Polignac number, because 12110052331521 - 2⁷ = 12110052331393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12110052336521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2177280990 + ... + 2177286551.

It is an arithmetic number, because the mean of its divisors is an integer number (1132187560920).

Almost surely, 2^{12110052331521} is an apocalyptic number.

It is an amenable number.

12110052331521 is a deficient number, since it is larger than the sum of its proper divisors (6004948643199).

12110052331521 is a wasteful number, since it uses less digits than its factorization.

12110052331521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354567653 (or 4354567647 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 12110052331521 its reverse (12513325001121), we get a palindrome (24623377332642).

The spelling of 12110052331521 in words is "twelve trillion, one hundred ten billion, fifty-two million, three hundred thirty-one thousand, five hundred twenty-one".