12217108373587 has 12 divisors (see below), whose sum is σ = 13885799294640. Its totient is φ = 10683787075632.

The previous prime is 12217108373531. The next prime is 12217108373629. The reversal of 12217108373587 is 78537380171221.

It is a happy number.

It is not a de Polignac number, because 12217108373587 - 2¹¹ = 12217108371539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12217108373507) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1301626287 + ... + 1301635672.

It is an arithmetic number, because the mean of its divisors is an integer number (1157149941220).

Almost surely, 2^{12217108373587} is an apocalyptic number.

12217108373587 is a deficient number, since it is larger than the sum of its proper divisors (1668690921053).

12217108373587 is a wasteful number, since it uses less digits than its factorization.

12217108373587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603262010 (or 2603261991 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 55.

The spelling of 12217108373587 in words is "twelve trillion, two hundred seventeen billion, one hundred eight million, three hundred seventy-three thousand, five hundred eighty-seven".