12512110043121 has 16 divisors (see below), whose sum is σ = 17966355677760. Its totient is φ = 7699653334080.

The previous prime is 12512110043033. The next prime is 12512110043129. The reversal of 12512110043121 is 12134001121521.

It is a happy number.

It is not a de Polignac number, because 12512110043121 - 2²⁹ = 12511573172209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12512110043091 and 12512110043100.

It is not an unprimeable number, because it can be changed into a prime (12512110043129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 675711 + ... + 5047851.

It is an arithmetic number, because the mean of its divisors is an integer number (1122897229860).

Almost surely, 2^{12512110043121} is an apocalyptic number.

It is an amenable number.

12512110043121 is a deficient number, since it is larger than the sum of its proper divisors (5454245634639).

12512110043121 is a wasteful number, since it uses less digits than its factorization.

12512110043121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445536.

The product of its (nonzero) digits is 480, while the sum is 24.

Adding to 12512110043121 its reverse (12134001121521), we get a palindrome (24646111164642).

The spelling of 12512110043121 in words is "twelve trillion, five hundred twelve billion, one hundred ten million, forty-three thousand, one hundred twenty-one".