1022111111117 has 2 divisors, whose sum is σ = 1022111111118. Its totient is φ = 1022111111116.

The previous prime is 1022111111101. The next prime is 1022111111227. The reversal of 1022111111117 is 7111111112201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 980157420841 + 41953690276 = 990029^2 + 204826^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022111111117 - 2⁴ = 1022111111101 is a prime.

It is a super-2 number, since 2×1022111111117² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022111111317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511055555558 + 511055555559.

It is an arithmetic number, because the mean of its divisors is an integer number (511055555559).

Almost surely, 2^{1022111111117} is an apocalyptic number.

It is an amenable number.

1022111111117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022111111117 is an equidigital number, since it uses as much as digits as its factorization.

1022111111117 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 1022111111117 its reverse (7111111112201), we get a palindrome (8133222223318).

The spelling of 1022111111117 in words is "one trillion, twenty-two billion, one hundred eleven million, one hundred eleven thousand, one hundred seventeen".