215233316226 has 12 divisors (see below), whose sum is σ = 466338851862. Its totient is φ = 71744438736.

The previous prime is 215233316197. The next prime is 215233316257. The reversal of 215233316226 is 622613332512.

215233316226 is a `hidden beast` number, since 2 + 1 + 5 + 23 + 3 + 3 + 1 + 622 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 214368074001 + 865242225 = 462999^2 + 29415^2 .

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, 5978703211 + ... + 5978703246.

Almost surely, 2^215233316226 is an apocalyptic number.

215233316226 is an abundant number, since it is smaller than the sum of its proper divisors (251105535636).

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

215233316226 is a wasteful number, since it uses less digits than its factorization.

215233316226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11957406465 (or 11957406462 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

Adding to 215233316226 its reverse (622613332512), we get a palindrome (837846648738).

The spelling of 215233316226 in words is "two hundred fifteen billion, two hundred thirty-three million, three hundred sixteen thousand, two hundred twenty-six".