22120112017 has 2 divisors, whose sum is σ = 22120112018. Its totient is φ = 22120112016.

The previous prime is 22120111973. The next prime is 22120112029. The reversal of 22120112017 is 71021102122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22062943296 + 57168721 = 148536^2 + 7561^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120112017 - 2⁷ = 22120111889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22120111985 and 22120112003.

It is not a weakly prime, because it can be changed into another prime (22120112317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060056008 + 11060056009.

It is an arithmetic number, because the mean of its divisors is an integer number (11060056009).

Almost surely, 2^22120112017 is an apocalyptic number.

It is an amenable number.

22120112017 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120112017 is an equidigital number, since it uses as much as digits as its factorization.

22120112017 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 19.

Adding to 22120112017 its reverse (71021102122), we get a palindrome (93141214139).

The spelling of 22120112017 in words is "twenty-two billion, one hundred twenty million, one hundred twelve thousand, seventeen".