111122087 has 2 divisors, whose sum is σ = 111122088. Its totient is φ = 111122086.

The previous prime is 111122071. The next prime is 111122093. The reversal of 111122087 is 780221111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111122087 - 2⁴ = 111122071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111122987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561043 + 55561044.

It is an arithmetic number, because the mean of its divisors is an integer number (55561044).

Almost surely, 2^111122087 is an apocalyptic number.

111122087 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122087 is an equidigital number, since it uses as much as digits as its factorization.

111122087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 111122087 is about 10541.4461531613. The cubic root of 111122087 is about 480.7656862190.

Adding to 111122087 its reverse (780221111), we get a palindrome (891343198).

The spelling of 111122087 in words is "one hundred eleven million, one hundred twenty-two thousand, eighty-seven".