2022217 has 2 divisors, whose sum is σ = 2022218. Its totient is φ = 2022216.

The previous prime is 2022191. The next prime is 2022233. The reversal of 2022217 is 7122202.

It is an a-pointer prime, because the next prime (2022233) can be obtained adding 2022217 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., 2005056 + 17161 = 1416^2 + 131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2022217 is a prime.

It is an Ulam number.

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 2022217.

It is not a weakly prime, because it can be changed into another prime (2022017) 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, 1011108 + 1011109.

It is an arithmetic number, because the mean of its divisors is an integer number (1011109).

2^2022217 is an apocalyptic number.

It is an amenable number.

2022217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022217 is an equidigital number, since it uses as much as digits as its factorization.

2022217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 2022217 is about 1422.0467643506. The cubic root of 2022217 is about 126.4569158636.

Adding to 2022217 its reverse (7122202), we get a palindrome (9144419).

The spelling of 2022217 in words is "two million, twenty-two thousand, two hundred seventeen".