12217552166201 has 8 divisors (see below), whose sum is σ = 12860678851680. Its totient is φ = 11574435243168.

The previous prime is 12217552166173. The next prime is 12217552166203. The reversal of 12217552166201 is 10266125571221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12217552166201 - 2¹⁸ = 12217551904057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12217552166203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201590 + ... + 4947296.

It is an arithmetic number, because the mean of its divisors is an integer number (1607584856460).

Almost surely, 2^{12217552166201} is an apocalyptic number.

It is an amenable number.

12217552166201 is a deficient number, since it is larger than the sum of its proper divisors (643126685479).

12217552166201 is a wasteful number, since it uses less digits than its factorization.

12217552166201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881223.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 12217552166201 in words is "twelve trillion, two hundred seventeen billion, five hundred fifty-two million, one hundred sixty-six thousand, two hundred one".