111222123099979 has 2 divisors, whose sum is σ = 111222123099980. Its totient is φ = 111222123099978.

The previous prime is 111222123099947. The next prime is 111222123100019. The reversal of 111222123099979 is 979990321222111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111222123099979 - 2⁵ = 111222123099947 is a prime.

It is a super-3 number, since 3×111222123099979³ (a number of 43 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (111222123009979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611061549989 + 55611061549990.

It is an arithmetic number, because the mean of its divisors is an integer number (55611061549990).

Almost surely, 2^{111222123099979} is an apocalyptic number.

111222123099979 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222123099979 is an equidigital number, since it uses as much as digits as its factorization.

111222123099979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 58.

The spelling of 111222123099979 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred twenty-three million, ninety-nine thousand, nine hundred seventy-nine".