1215412112125 has 32 divisors (see below), whose sum is σ = 1675888621056. Its totient is φ = 875345363200.

The previous prime is 1215412112099. The next prime is 1215412112179. The reversal of 1215412112125 is 5212112145121.

It is not a de Polignac number, because 1215412112125 - 2⁵ = 1215412112093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1215412112093 and 1215412112102.

It is a congruent number.

It is an unprimeable number.

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, 12385009 + ... + 12482758.

It is an arithmetic number, because the mean of its divisors is an integer number (52371519408).

Almost surely, 2^{1215412112125} is an apocalyptic number.

It is an amenable number.

1215412112125 is a deficient number, since it is larger than the sum of its proper divisors (460476508931).

1215412112125 is a wasteful number, since it uses less digits than its factorization.

1215412112125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24867822 (or 24867812 counting only the distinct ones).

The product of its digits is 1600, while the sum is 28.

Adding to 1215412112125 its reverse (5212112145121), we get a palindrome (6427524257246).

The spelling of 1215412112125 in words is "one trillion, two hundred fifteen billion, four hundred twelve million, one hundred twelve thousand, one hundred twenty-five".