111112010001217 has 2 divisors, whose sum is σ = 111112010001218. Its totient is φ = 111112010001216.

The previous prime is 111112010001193. The next prime is 111112010001229. The reversal of 111112010001217 is 712100010211111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110717555662081 + 394454339136 = 10522241^2 + 628056^2 .

It is a cyclic number.

It is not a de Polignac number, because 111112010001217 - 2¹⁹ = 111112009476929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111112010001194 and 111112010001203.

It is not a weakly prime, because it can be changed into another prime (111112010001017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556005000608 + 55556005000609.

It is an arithmetic number, because the mean of its divisors is an integer number (55556005000609).

Almost surely, 2^{111112010001217} is an apocalyptic number.

It is an amenable number.

111112010001217 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112010001217 is an equidigital number, since it uses as much as digits as its factorization.

111112010001217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 19.

Adding to 111112010001217 its reverse (712100010211111), we get a palindrome (823212020212328).

The spelling of 111112010001217 in words is "one hundred eleven trillion, one hundred twelve billion, ten million, one thousand, two hundred seventeen".