12218805370508 has 24 divisors (see below), whose sum is σ = 23333558246544. Its totient is φ = 5552395776000.

The previous prime is 12218805370483. The next prime is 12218805370529. The reversal of 12218805370508 is 80507350881221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40012793 + ... + 40317008.

It is an arithmetic number, because the mean of its divisors is an integer number (972231593606).

Almost surely, 2^{12218805370508} is an apocalyptic number.

It is an amenable number.

12218805370508 is a deficient number, since it is larger than the sum of its proper divisors (11114752876036).

12218805370508 is a wasteful number, since it uses less digits than its factorization.

12218805370508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80333273 (or 80333271 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 50.

The spelling of 12218805370508 in words is "twelve trillion, two hundred eighteen billion, eight hundred five million, three hundred seventy thousand, five hundred eight".