111011221010117 has 2 divisors, whose sum is σ = 111011221010118. Its totient is φ = 111011221010116.

The previous prime is 111011221010101. The next prime is 111011221010233. The reversal of 111011221010117 is 711010122110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75559747485121 + 35451473524996 = 8692511^2 + 5954114^2 .

It is a cyclic number.

It is not a de Polignac number, because 111011221010117 - 2⁴ = 111011221010101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111011221010317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505610505058 + 55505610505059.

It is an arithmetic number, because the mean of its divisors is an integer number (55505610505059).

Almost surely, 2^{111011221010117} is an apocalyptic number.

It is an amenable number.

111011221010117 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011221010117 is an equidigital number, since it uses as much as digits as its factorization.

111011221010117 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 20.

Adding to 111011221010117 its reverse (711010122110111), we get a palindrome (822021343120228).

The spelling of 111011221010117 in words is "one hundred eleven trillion, eleven billion, two hundred twenty-one million, ten thousand, one hundred seventeen".