111122102011091 has 2 divisors, whose sum is σ = 111122102011092. Its totient is φ = 111122102011090.

The previous prime is 111122102011087. The next prime is 111122102011111. The reversal of 111122102011091 is 190110201221111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111122102011091 - 2² = 111122102011087 is a prime.

It is not a weakly prime, because it can be changed into another prime (111122102011051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561051005545 + 55561051005546.

It is an arithmetic number, because the mean of its divisors is an integer number (55561051005546).

Almost surely, 2^{111122102011091} is an apocalyptic number.

111122102011091 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122102011091 is an equidigital number, since it uses as much as digits as its factorization.

111122102011091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 23.

The spelling of 111122102011091 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred two million, eleven thousand, ninety-one".