22422209 has 4 divisors (see below), whose sum is σ = 22434816. Its totient is φ = 22409604.

The previous prime is 22422199. The next prime is 22422227. The reversal of 22422209 is 90222422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22422209 - 2⁴ = 22422193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22422409) 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, 3089 + ... + 7374.

It is an arithmetic number, because the mean of its divisors is an integer number (5608704).

Almost surely, 2^22422209 is an apocalyptic number.

It is an amenable number.

22422209 is a deficient number, since it is larger than the sum of its proper divisors (12607).

22422209 is a wasteful number, since it uses less digits than its factorization.

22422209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12606.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 22422209 is about 4735.2094990613. The cubic root of 22422209 is about 281.9850812824.

The spelling of 22422209 in words is "twenty-two million, four hundred twenty-two thousand, two hundred nine".