11499218226 has 24 divisors (see below), whose sum is σ = 24945801660. Its totient is φ = 3828329856.

The previous prime is 11499218179. The next prime is 11499218231. The reversal of 11499218226 is 62281299411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11281626225 + 217592001 = 106215^2 + 14751^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 380275 + ... + 409398.

Almost surely, 2^11499218226 is an apocalyptic number.

11499218226 is an abundant number, since it is smaller than the sum of its proper divisors (13446583434).

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

11499218226 is a wasteful number, since it uses less digits than its factorization.

11499218226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790490 (or 790487 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The spelling of 11499218226 in words is "eleven billion, four hundred ninety-nine million, two hundred eighteen thousand, two hundred twenty-six".