22122022011217 has 2 divisors, whose sum is σ = 22122022011218. Its totient is φ = 22122022011216.

The previous prime is 22122022011169. The next prime is 22122022011227. The reversal of 22122022011217 is 71211022022122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19622410418961 + 2499611592256 = 4429719^2 + 1581016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22122022011217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22122022011191 and 22122022011200.

It is not a weakly prime, because it can be changed into another prime (22122022011227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061011005608 + 11061011005609.

It is an arithmetic number, because the mean of its divisors is an integer number (11061011005609).

Almost surely, 2^{22122022011217} is an apocalyptic number.

It is an amenable number.

22122022011217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122022011217 is an equidigital number, since it uses as much as digits as its factorization.

22122022011217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 22122022011217 its reverse (71211022022122), we get a palindrome (93333044033339).

The spelling of 22122022011217 in words is "twenty-two trillion, one hundred twenty-two billion, twenty-two million, eleven thousand, two hundred seventeen".