12270409218 has 12 divisors (see below), whose sum is σ = 26585886678. Its totient is φ = 4090136400.

The previous prime is 12270409213. The next prime is 12270409259. The reversal of 12270409218 is 81290407221.

12270409218 is a `hidden beast` number, since 1 + 227 + 0 + 409 + 21 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10349603289 + 1920805929 = 101733^2 + 43827^2 .

It is not an unprimeable number, because it can be changed into a prime (12270409213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 340844683 + ... + 340844718.

Almost surely, 2^12270409218 is an apocalyptic number.

12270409218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12270409218 is an abundant number, since it is smaller than the sum of its proper divisors (14315477460).

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

12270409218 is a wasteful number, since it uses less digits than its factorization.

12270409218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681689409 (or 681689406 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 12270409218 in words is "twelve billion, two hundred seventy million, four hundred nine thousand, two hundred eighteen".