12217552166200 has 48 divisors (see below), whose sum is σ = 29173533365880. Its totient is φ = 4754939218560.

The previous prime is 12217552166173. The next prime is 12217552166203. The reversal of 12217552166200 is 266125571221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 825502882 + ... + 825517681.

Almost surely, 2^{12217552166200} is an apocalyptic number.

12217552166200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12217552166200 is an abundant number, since it is smaller than the sum of its proper divisors (16955981199680).

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

12217552166200 is a wasteful number, since it uses less digits than its factorization.

12217552166200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651020616 (or 1651020607 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 12217552166200 in words is "twelve trillion, two hundred seventeen billion, five hundred fifty-two million, one hundred sixty-six thousand, two hundred".