22101021317 has 2 divisors, whose sum is σ = 22101021318. Its totient is φ = 22101021316.

The previous prime is 22101021281. The next prime is 22101021323. The reversal of 22101021317 is 71312010122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20606889601 + 1494131716 = 143551^2 + 38654^2 .

It is a cyclic number.

It is not a de Polignac number, because 22101021317 - 2²⁸ = 21832585861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22101021617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050510658 + 11050510659.

It is an arithmetic number, because the mean of its divisors is an integer number (11050510659).

Almost surely, 2^22101021317 is an apocalyptic number.

It is an amenable number.

22101021317 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101021317 is an equidigital number, since it uses as much as digits as its factorization.

22101021317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 22101021317 its reverse (71312010122), we get a palindrome (93413031439).

The spelling of 22101021317 in words is "twenty-two billion, one hundred one million, twenty-one thousand, three hundred seventeen".