9222209 has 4 divisors (see below), whose sum is σ = 9313620. Its totient is φ = 9130800.

The previous prime is 9222197. The next prime is 9222217. The reversal of 9222209 is 9022229.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9022229 = 101 ⋅89329.

It can be written as a sum of positive squares in 2 ways, for example, as 4060225 + 5161984 = 2015^2 + 2272^2 .

It is a cyclic number.

It is not a de Polignac number, because 9222209 - 2⁴ = 9222193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9222229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45554 + ... + 45755.

It is an arithmetic number, because the mean of its divisors is an integer number (2328405).

Almost surely, 2^9222209 is an apocalyptic number.

It is an amenable number.

9222209 is a deficient number, since it is larger than the sum of its proper divisors (91411).

9222209 is a wasteful number, since it uses less digits than its factorization.

9222209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91410.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 9222209 is about 3036.8090160562. The cubic root of 9222209 is about 209.7063848307.

It can be divided in two parts, 922220 and 9, that added together give a palindrome (922229).

The spelling of 9222209 in words is "nine million, two hundred twenty-two thousand, two hundred nine".