111100111212179 has 2 divisors, whose sum is σ = 111100111212180. Its totient is φ = 111100111212178.

The previous prime is 111100111212151. The next prime is 111100111212241. The reversal of 111100111212179 is 971212111001111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111100111212179 is a prime.

It is a super-2 number, since 2×111100111212179² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (111100111212109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550055606089 + 55550055606090.

It is an arithmetic number, because the mean of its divisors is an integer number (55550055606090).

Almost surely, 2^{111100111212179} is an apocalyptic number.

111100111212179 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100111212179 is an equidigital number, since it uses as much as digits as its factorization.

111100111212179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 29.

The spelling of 111100111212179 in words is "one hundred eleven trillion, one hundred billion, one hundred eleven million, two hundred twelve thousand, one hundred seventy-nine".