2222217 has 6 divisors (see below), whose sum is σ = 3209882. Its totient is φ = 1481472.

The previous prime is 2222203. The next prime is 2222219. The reversal of 2222217 is 7122222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1971216 + 251001 = 1404^2 + 501^2 .

It is not a de Polignac number, because 2222217 - 2⁷ = 2222089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2222217.

It is not an unprimeable number, because it can be changed into a prime (2222219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123448 + ... + 123465.

2^2222217 is an apocalyptic number.

It is an amenable number.

2222217 is a deficient number, since it is larger than the sum of its proper divisors (987665).

2222217 is a wasteful number, since it uses less digits than its factorization.

2222217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246919 (or 246916 counting only the distinct ones).

The product of its digits is 224, while the sum is 18.

The square root of 2222217 is about 1490.7102334122. The cubic root of 2222217 is about 130.4954858173.

Adding to 2222217 its reverse (7122222), we get a palindrome (9344439).

The spelling of 2222217 in words is "two million, two hundred twenty-two thousand, two hundred seventeen".