12217572262064 has 80 divisors (see below), whose sum is σ = 27157445145600. Its totient is φ = 5277733625088.

The previous prime is 12217572262037. The next prime is 12217572262099. The reversal of 12217572262064 is 46026227571221.

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, 18295424 + ... + 18951455.

It is an arithmetic number, because the mean of its divisors is an integer number (339468064320).

Almost surely, 2^{12217572262064} is an apocalyptic number.

It is an amenable number.

12217572262064 is an abundant number, since it is smaller than the sum of its proper divisors (14939872883536).

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

12217572262064 is a wasteful number, since it uses less digits than its factorization.

12217572262064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37247002 (or 37246996 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 12217572262064 in words is "twelve trillion, two hundred seventeen billion, five hundred seventy-two million, two hundred sixty-two thousand, sixty-four".