112011221209 has 2 divisors, whose sum is σ = 112011221210. Its totient is φ = 112011221208.

The previous prime is 112011221197. The next prime is 112011221219. The reversal of 112011221209 is 902122110211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107057876809 + 4953344400 = 327197^2 + 70380^2 .

It is a cyclic number.

It is not a de Polignac number, because 112011221209 - 2⁵ = 112011221177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112011221209.

It is not a weakly prime, because it can be changed into another prime (112011221219) 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, 56005610604 + 56005610605.

It is an arithmetic number, because the mean of its divisors is an integer number (56005610605).

Almost surely, 2^112011221209 is an apocalyptic number.

It is an amenable number.

112011221209 is a deficient number, since it is larger than the sum of its proper divisors (1).

112011221209 is an equidigital number, since it uses as much as digits as its factorization.

112011221209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 112011221209 in words is "one hundred twelve billion, eleven million, two hundred twenty-one thousand, two hundred nine".