12011322113226 has 24 divisors (see below), whose sum is σ = 26035880890500. Its totient is φ = 4002027938496.

The previous prime is 12011322113191. The next prime is 12011322113227. The reversal of 12011322113226 is 62231122311021.

It is a happy number.

12011322113226 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 1 + 322 + 11 + 322 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11571215919201 + 440106194025 = 3401649^2 + 663405^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12011322113226.

It is not an unprimeable number, because it can be changed into a prime (12011322113227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145465851 + ... + 145548398.

Almost surely, 2^{12011322113226} is an apocalyptic number.

12011322113226 is an abundant number, since it is smaller than the sum of its proper divisors (14024558777274).

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

12011322113226 is a wasteful number, since it uses less digits than its factorization.

12011322113226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291016550 (or 291016547 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 12011322113226 its reverse (62231122311021), we get a palindrome (74242444424247).

The spelling of 12011322113226 in words is "twelve trillion, eleven billion, three hundred twenty-two million, one hundred thirteen thousand, two hundred twenty-six".