12051221306316 has 48 divisors (see below), whose sum is σ = 28774134563328. Its totient is φ = 3923561275200.

The previous prime is 12051221306287. The next prime is 12051221306321. The reversal of 12051221306316 is 61360312215021.

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, 23748606 + ... + 24250746.

It is an arithmetic number, because the mean of its divisors is an integer number (599461136736).

Almost surely, 2^{12051221306316} is an apocalyptic number.

It is an amenable number.

12051221306316 is an abundant number, since it is smaller than the sum of its proper divisors (16722913257012).

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

12051221306316 is a wasteful number, since it uses less digits than its factorization.

12051221306316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548702 (or 548700 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 12051221306316 in words is "twelve trillion, fifty-one billion, two hundred twenty-one million, three hundred six thousand, three hundred sixteen".