111122222200009 has 2 divisors, whose sum is σ = 111122222200010. Its totient is φ = 111122222200008.

The previous prime is 111122222199907. The next prime is 111122222200019. The reversal of 111122222200009 is 900002222221111.

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., 110093143830784 + 1029078369225 = 10492528^2 + 1014435^2 .

It is a cyclic number.

It is not a de Polignac number, because 111122222200009 - 2⁴³ = 102326129177801 is a prime.

It is not a weakly prime, because it can be changed into another prime (111122222200019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561111100004 + 55561111100005.

It is an arithmetic number, because the mean of its divisors is an integer number (55561111100005).

Almost surely, 2^{111122222200009} is an apocalyptic number.

It is an amenable number.

111122222200009 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122222200009 is an equidigital number, since it uses as much as digits as its factorization.

111122222200009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 111122222200009 in words is "one hundred eleven trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred thousand, nine".