22112021017 has 2 divisors, whose sum is σ = 22112021018. Its totient is φ = 22112021016.

The previous prime is 22112021011. The next prime is 22112021053. The reversal of 22112021017 is 71012021122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18305007616 + 3807013401 = 135296^2 + 61701^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112021017 - 2¹¹ = 22112018969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22112020985 and 22112021003.

It is not a weakly prime, because it can be changed into another prime (22112021011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056010508 + 11056010509.

It is an arithmetic number, because the mean of its divisors is an integer number (11056010509).

Almost surely, 2^22112021017 is an apocalyptic number.

It is an amenable number.

22112021017 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112021017 is an equidigital number, since it uses as much as digits as its factorization.

22112021017 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 22112021017 its reverse (71012021122), we get a palindrome (93124042139).

The spelling of 22112021017 in words is "twenty-two billion, one hundred twelve million, twenty-one thousand, seventeen".