12315221051604 has 24 divisors (see below), whose sum is σ = 29984886039360. Its totient is φ = 3926592219264.

The previous prime is 12315221051579. The next prime is 12315221051611. The reversal of 12315221051604 is 40615012251321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22310182789 + ... + 22310183340.

It is an arithmetic number, because the mean of its divisors is an integer number (1249370251640).

Almost surely, 2^{12315221051604} is an apocalyptic number.

It is an amenable number.

12315221051604 is an abundant number, since it is smaller than the sum of its proper divisors (17669664987756).

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

12315221051604 is a wasteful number, since it uses less digits than its factorization.

12315221051604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44620366159 (or 44620366157 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 12315221051604 in words is "twelve trillion, three hundred fifteen billion, two hundred twenty-one million, fifty-one thousand, six hundred four".