11122222222109 has 2 divisors, whose sum is σ = 11122222222110. Its totient is φ = 11122222222108.

The previous prime is 11122222222103. The next prime is 11122222222151. The reversal of 11122222222109 is 90122222222111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8462990810884 + 2659231411225 = 2909122^2 + 1630715^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122222222109 - 2⁴⁰ = 10022710594333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122222222103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561111111054 + 5561111111055.

It is an arithmetic number, because the mean of its divisors is an integer number (5561111111055).

Almost surely, 2^{11122222222109} is an apocalyptic number.

It is an amenable number.

11122222222109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122222222109 is an equidigital number, since it uses as much as digits as its factorization.

11122222222109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 11122222222109 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred nine".