112221122809 has 2 divisors, whose sum is σ = 112221122810. Its totient is φ = 112221122808.

The previous prime is 112221122747. The next prime is 112221122821. The reversal of 112221122809 is 908221122211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88565760000 + 23655362809 = 297600^2 + 153803^2 .

It is a cyclic number.

It is not a de Polignac number, because 112221122809 - 2⁹ = 112221122297 is a prime.

It is not a weakly prime, because it can be changed into another prime (112221122869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56110561404 + 56110561405.

It is an arithmetic number, because the mean of its divisors is an integer number (56110561405).

Almost surely, 2^112221122809 is an apocalyptic number.

It is an amenable number.

112221122809 is a deficient number, since it is larger than the sum of its proper divisors (1).

112221122809 is an equidigital number, since it uses as much as digits as its factorization.

112221122809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 112221122809 in words is "one hundred twelve billion, two hundred twenty-one million, one hundred twenty-two thousand, eight hundred nine".