111010120217 has 2 divisors, whose sum is σ = 111010120218. Its totient is φ = 111010120216.

The previous prime is 111010120211. The next prime is 111010120219. The reversal of 111010120217 is 712021010111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79445623321 + 31564496896 = 281861^2 + 177664^2 .

It is a cyclic number.

It is not a de Polignac number, because 111010120217 - 2¹⁶ = 111010054681 is a prime.

Together with 111010120219, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 111010120195 and 111010120204.

It is not a weakly prime, because it can be changed into another prime (111010120211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505060108 + 55505060109.

It is an arithmetic number, because the mean of its divisors is an integer number (55505060109).

Almost surely, 2^111010120217 is an apocalyptic number.

It is an amenable number.

111010120217 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010120217 is an equidigital number, since it uses as much as digits as its factorization.

111010120217 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 17.

Adding to 111010120217 its reverse (712021010111), we get a palindrome (823031130328).

The spelling of 111010120217 in words is "one hundred eleven billion, ten million, one hundred twenty thousand, two hundred seventeen".