111224201211979 has 2 divisors, whose sum is σ = 111224201211980. Its totient is φ = 111224201211978.

The previous prime is 111224201211967. The next prime is 111224201211989. The reversal of 111224201211979 is 979112102422111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111224201211979 - 2⁹ = 111224201211467 is a prime.

It is not a weakly prime, because it can be changed into another prime (111224201211989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55612100605989 + 55612100605990.

It is an arithmetic number, because the mean of its divisors is an integer number (55612100605990).

Almost surely, 2^{111224201211979} is an apocalyptic number.

111224201211979 is a deficient number, since it is larger than the sum of its proper divisors (1).

111224201211979 is an equidigital number, since it uses as much as digits as its factorization.

111224201211979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 43.

The spelling of 111224201211979 in words is "one hundred eleven trillion, two hundred twenty-four billion, two hundred one million, two hundred eleven thousand, nine hundred seventy-nine".