12501415121105 has 16 divisors (see below), whose sum is σ = 16029877145040. Its totient is φ = 9326473961472.

The previous prime is 12501415121077. The next prime is 12501415121113. The reversal of 12501415121105 is 50112151410521.

12501415121105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 588638803984 + 11912776317121 = 767228^2 + 3451489^2 .

It is a cyclic number.

It is not a de Polignac number, because 12501415121105 - 2¹⁰ = 12501415120081 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 674648864 + ... + 674667393.

It is an arithmetic number, because the mean of its divisors is an integer number (1001867321565).

Almost surely, 2^{12501415121105} is an apocalyptic number.

It is an amenable number.

12501415121105 is a deficient number, since it is larger than the sum of its proper divisors (3528462023935).

12501415121105 is a wasteful number, since it uses less digits than its factorization.

12501415121105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349316388.

The product of its (nonzero) digits is 2000, while the sum is 29.

Adding to 12501415121105 its reverse (50112151410521), we get a palindrome (62613566531626).

The spelling of 12501415121105 in words is "twelve trillion, five hundred one billion, four hundred fifteen million, one hundred twenty-one thousand, one hundred five".