12015105220125 has 96 divisors (see below), whose sum is σ = 25008596680704. Its totient is φ = 5435994240000.

The previous prime is 12015105220099. The next prime is 12015105220127. The reversal of 12015105220125 is 52102250151021.

12015105220125 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 5 + 10 + 522 + 0 + 125 = 666.

It is not a de Polignac number, because 12015105220125 - 2⁵ = 12015105220093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12015105220127) 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 95 ways as a sum of consecutive naturals, for example, 7100701 + ... + 8628450.

It is an arithmetic number, because the mean of its divisors is an integer number (260506215424).

Almost surely, 2^{12015105220125} is an apocalyptic number.

12015105220125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12015105220125 is an abundant number, since it is smaller than the sum of its proper divisors (12993491460579).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12015105220125 is a wasteful number, since it uses less digits than its factorization.

12015105220125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15729276 (or 15729263 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 12015105220125 its reverse (52102250151021), we get a palindrome (64117355371146).

The spelling of 12015105220125 in words is "twelve trillion, fifteen billion, one hundred five million, two hundred twenty thousand, one hundred twenty-five".