12051221306315 has 16 divisors (see below), whose sum is σ = 14603007514368. Its totient is φ = 9546630355296.

The previous prime is 12051221306287. The next prime is 12051221306321. The reversal of 12051221306315 is 51360312215021.

It is a cyclic number.

It is not a de Polignac number, because 12051221306315 - 2⁶ = 12051221306251 is a prime.

It is a Duffinian 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, 5740604 + ... + 7553606.

It is an arithmetic number, because the mean of its divisors is an integer number (912687969648).

Almost surely, 2^{12051221306315} is an apocalyptic number.

12051221306315 is a deficient number, since it is larger than the sum of its proper divisors (2551786208053).

12051221306315 is a wasteful number, since it uses less digits than its factorization.

12051221306315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826018.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 12051221306315 in words is "twelve trillion, fifty-one billion, two hundred twenty-one million, three hundred six thousand, three hundred fifteen".