111220122111017 has 2 divisors, whose sum is σ = 111220122111018. Its totient is φ = 111220122111016.

The previous prime is 111220122111013. The next prime is 111220122111029. The reversal of 111220122111017 is 710111221022111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73773995894041 + 37446126216976 = 8589179^2 + 6119324^2 .

It is a cyclic number.

It is not a de Polignac number, because 111220122111017 - 2² = 111220122111013 is a prime.

It is a super-3 number, since 3×111220122111017³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111220122110983 and 111220122111001.

It is not a weakly prime, because it can be changed into another prime (111220122111013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610061055508 + 55610061055509.

It is an arithmetic number, because the mean of its divisors is an integer number (55610061055509).

Almost surely, 2^{111220122111017} is an apocalyptic number.

It is an amenable number.

111220122111017 is a deficient number, since it is larger than the sum of its proper divisors (1).

111220122111017 is an equidigital number, since it uses as much as digits as its factorization.

111220122111017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 23.

Adding to 111220122111017 its reverse (710111221022111), we get a palindrome (821331343133128).

The spelling of 111220122111017 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred twenty-two million, one hundred eleven thousand, seventeen".