2211217 has 2 divisors, whose sum is σ = 2211218. Its totient is φ = 2211216.

The previous prime is 2211211. The next prime is 2211227. The reversal of 2211217 is 7121122.

2211217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1957201 + 254016 = 1399^2 + 504^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211217 - 2¹¹ = 2209169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2211217.

It is not a weakly prime, because it can be changed into another prime (2211211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105608 + 1105609.

It is an arithmetic number, because the mean of its divisors is an integer number (1105609).

2^2211217 is an apocalyptic number.

It is an amenable number.

2211217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211217 is an equidigital number, since it uses as much as digits as its factorization.

2211217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56, while the sum is 16.

The square root of 2211217 is about 1487.0161397914. The cubic root of 2211217 is about 130.2798115039.

Adding to 2211217 its reverse (7121122), we get a palindrome (9332339).

The spelling of 2211217 in words is "two million, two hundred eleven thousand, two hundred seventeen".