1112021122109 has 2 divisors, whose sum is σ = 1112021122110. Its totient is φ = 1112021122108.

The previous prime is 1112021122067. The next prime is 1112021122123. The reversal of 1112021122109 is 9012211202111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 654432460900 + 457588661209 = 808970^2 + 676453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112021122109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112021122159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556010561054 + 556010561055.

It is an arithmetic number, because the mean of its divisors is an integer number (556010561055).

Almost surely, 2^{1112021122109} is an apocalyptic number.

It is an amenable number.

1112021122109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112021122109 is an equidigital number, since it uses as much as digits as its factorization.

1112021122109 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 23.

The spelling of 1112021122109 in words is "one trillion, one hundred twelve billion, twenty-one million, one hundred twenty-two thousand, one hundred nine".