121111112179 has 2 divisors, whose sum is σ = 121111112180. Its totient is φ = 121111112178.

The previous prime is 121111112153. The next prime is 121111112203. The reversal of 121111112179 is 971211111121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121111112179 - 2⁷ = 121111112051 is a prime.

It is not a weakly prime, because it can be changed into another prime (121111112579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555556089 + 60555556090.

It is an arithmetic number, because the mean of its divisors is an integer number (60555556090).

Almost surely, 2^121111112179 is an apocalyptic number.

121111112179 is a deficient number, since it is larger than the sum of its proper divisors (1).

121111112179 is an equidigital number, since it uses as much as digits as its factorization.

121111112179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252, while the sum is 28.

The spelling of 121111112179 in words is "one hundred twenty-one billion, one hundred eleven million, one hundred twelve thousand, one hundred seventy-nine".