4221223 has 2 divisors, whose sum is σ = 4221224. Its totient is φ = 4221222.

The previous prime is 4221209. The next prime is 4221227. The reversal of 4221223 is 3221224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4221223 - 2¹³ = 4213031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4221197 and 4221206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110611 + 2110612.

It is an arithmetic number, because the mean of its divisors is an integer number (2110612).

Almost surely, 2^4221223 is an apocalyptic number.

4221223 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221223 is an equidigital number, since it uses as much as digits as its factorization.

4221223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 16.

The square root of 4221223 is about 2054.5615103958. The cubic root of 4221223 is about 161.6141684266.

Adding to 4221223 its reverse (3221224), we get a palindrome (7442447).

Subtracting from 4221223 its reverse (3221224), we obtain a palindrome (999999).

It can be divided in two parts, 4221 and 223, that added together give a palindrome (4444).

The spelling of 4221223 in words is "four million, two hundred twenty-one thousand, two hundred twenty-three".