111122102011111 has 2 divisors, whose sum is σ = 111122102011112. Its totient is φ = 111122102011110.

The previous prime is 111122102011091. The next prime is 111122102011153. The reversal of 111122102011111 is 111110201221111.

It is a weak prime.

It is an emirp because it is prime and its reverse (111110201221111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111122102011111 - 2²⁹ = 111121565140199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111122102011211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561051005555 + 55561051005556.

It is an arithmetic number, because the mean of its divisors is an integer number (55561051005556).

Almost surely, 2^{111122102011111} is an apocalyptic number.

111122102011111 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122102011111 is an equidigital number, since it uses as much as digits as its factorization.

111122102011111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 111122102011111 its reverse (111110201221111), we get a palindrome (222232303232222).

The spelling of 111122102011111 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred two million, eleven thousand, one hundred eleven".