12217973200 has 30 divisors (see below), whose sum is σ = 29353681574. Its totient is φ = 4887189120.

The previous prime is 12217973191. The next prime is 12217973263. The reversal of 12217973200 is 237971221.

It can be written as a sum of positive squares in 3 ways, for example, as 81866304 + 12136106896 = 9048^2 + 110164^2 .

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 5 ways as a sum of consecutive naturals, for example, 15272067 + ... + 15272866.

Almost surely, 2^12217973200 is an apocalyptic number.

12217973200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12217973200 is an abundant number, since it is smaller than the sum of its proper divisors (17135708374).

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

12217973200 is a wasteful number, since it uses less digits than its factorization.

12217973200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30544951 (or 30544940 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The spelling of 12217973200 in words is "twelve billion, two hundred seventeen million, nine hundred seventy-three thousand, two hundred".