11122013209 has 2 divisors, whose sum is σ = 11122013210. Its totient is φ = 11122013208.

The previous prime is 11122013179. The next prime is 11122013219. The reversal of 11122013209 is 90231022111.

11122013209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10977171984 + 144841225 = 104772^2 + 12035^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122013209 - 2¹¹ = 11122011161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11122013209.

It is not a weakly prime, because it can be changed into another prime (11122013219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561006604 + 5561006605.

It is an arithmetic number, because the mean of its divisors is an integer number (5561006605).

Almost surely, 2^11122013209 is an apocalyptic number.

It is an amenable number.

11122013209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122013209 is an equidigital number, since it uses as much as digits as its factorization.

11122013209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 11122013209 in words is "eleven billion, one hundred twenty-two million, thirteen thousand, two hundred nine".