111122210009 has 2 divisors, whose sum is σ = 111122210010. Its totient is φ = 111122210008.

The previous prime is 111122209997. The next prime is 111122210039. The reversal of 111122210009 is 900012221111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85715443984 + 25406766025 = 292772^2 + 159395^2 .

It is a cyclic number.

It is not a de Polignac number, because 111122210009 - 2¹⁶ = 111122144473 is a prime.

It is not a weakly prime, because it can be changed into another prime (111122210039) 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, 55561105004 + 55561105005.

It is an arithmetic number, because the mean of its divisors is an integer number (55561105005).

Almost surely, 2^111122210009 is an apocalyptic number.

It is an amenable number.

111122210009 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122210009 is an equidigital number, since it uses as much as digits as its factorization.

111122210009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 111122210009 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred ten thousand, nine".