12217435204 has 18 divisors (see below), whose sum is σ = 23151679530. Its totient is φ = 5638815936.

The previous prime is 12217435123. The next prime is 12217435213. The reversal of 12217435204 is 40253471221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 449524804 + 11767910400 = 21202^2 + 108480^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9035889 + ... + 9037240.

Almost surely, 2^12217435204 is an apocalyptic number.

It is an amenable number.

12217435204 is a deficient number, since it is larger than the sum of its proper divisors (10934244326).

12217435204 is a wasteful number, since it uses less digits than its factorization.

12217435204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18073159 (or 18073144 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 12217435204 in words is "twelve billion, two hundred seventeen million, four hundred thirty-five thousand, two hundred four".