111010012111217 has 2 divisors, whose sum is σ = 111010012111218. Its totient is φ = 111010012111216.

The previous prime is 111010012111199. The next prime is 111010012111223. The reversal of 111010012111217 is 712111210010111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84136664140816 + 26873347970401 = 9172604^2 + 5183951^2 .

It is a cyclic number.

It is not a de Polignac number, because 111010012111217 - 2¹⁴ = 111010012094833 is a prime.

It is a super-3 number, since 3×111010012111217³ (a number of 43 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (111010012111267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505006055608 + 55505006055609.

It is an arithmetic number, because the mean of its divisors is an integer number (55505006055609).

Almost surely, 2^{111010012111217} is an apocalyptic number.

It is an amenable number.

111010012111217 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010012111217 is an equidigital number, since it uses as much as digits as its factorization.

111010012111217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 20.

Adding to 111010012111217 its reverse (712111210010111), we get a palindrome (823121222121328).

The spelling of 111010012111217 in words is "one hundred eleven trillion, ten billion, twelve million, one hundred eleven thousand, two hundred seventeen".