22006223 has 2 divisors, whose sum is σ = 22006224. Its totient is φ = 22006222.

The previous prime is 22006207. The next prime is 22006241. The reversal of 22006223 is 32260022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22006223 - 2⁴ = 22006207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22006723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11003111 + 11003112.

It is an arithmetic number, because the mean of its divisors is an integer number (11003112).

Almost surely, 2^22006223 is an apocalyptic number.

22006223 is a deficient number, since it is larger than the sum of its proper divisors (1).

22006223 is an equidigital number, since it uses as much as digits as its factorization.

22006223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22006223 is about 4691.0790869479. The cubic root of 22006223 is about 280.2303504093.

Adding to 22006223 its reverse (32260022), we get a palindrome (54266245).

The spelling of 22006223 in words is "twenty-two million, six thousand, two hundred twenty-three".