22100317 has 2 divisors, whose sum is σ = 22100318. Its totient is φ = 22100316.

The previous prime is 22100297. The next prime is 22100333. The reversal of 22100317 is 71300122.

It is a happy number.

It is an a-pointer prime, because the next prime (22100333) can be obtained adding 22100317 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18156121 + 3944196 = 4261^2 + 1986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22100317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22100317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22100347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050158 + 11050159.

It is an arithmetic number, because the mean of its divisors is an integer number (11050159).

Almost surely, 2^22100317 is an apocalyptic number.

It is an amenable number.

22100317 is a deficient number, since it is larger than the sum of its proper divisors (1).

22100317 is an equidigital number, since it uses as much as digits as its factorization.

22100317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 22100317 is about 4701.0974250700. The cubic root of 22100317 is about 280.6291845977.

Adding to 22100317 its reverse (71300122), we get a palindrome (93400439).

The spelling of 22100317 in words is "twenty-two million, one hundred thousand, three hundred seventeen".