4224403221 has 4 divisors (see below), whose sum is σ = 5632537632. Its totient is φ = 2816268812.

The previous prime is 4224403163. The next prime is 4224403229. The reversal of 4224403221 is 1223044224.

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 4224403221 - 2²⁶ = 4157294357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4224403191 and 4224403200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4224403229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704067201 + ... + 704067206.

It is an arithmetic number, because the mean of its divisors is an integer number (1408134408).

Almost surely, 2^4224403221 is an apocalyptic number.

It is an amenable number.

4224403221 is a deficient number, since it is larger than the sum of its proper divisors (1408134411).

4224403221 is a wasteful number, since it uses less digits than its factorization.

4224403221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408134410.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4224403221 is about 64995.4092301910. The cubic root of 4224403221 is about 1616.5474432550.

Adding to 4224403221 its reverse (1223044224), we get a palindrome (5447447445).

The spelling of 4224403221 in words is "four billion, two hundred twenty-four million, four hundred three thousand, two hundred twenty-one".