4221223423 has 4 divisors (see below), whose sum is σ = 4233388680. Its totient is φ = 4209058168.

The previous prime is 4221223411. The next prime is 4221223451. The reversal of 4221223423 is 3243221224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4221223423 - 2²¹ = 4219126271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221223463) 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, 6082108 + ... + 6082801.

It is an arithmetic number, because the mean of its divisors is an integer number (1058347170).

Almost surely, 2^4221223423 is an apocalyptic number.

4221223423 is a deficient number, since it is larger than the sum of its proper divisors (12165257).

4221223423 is a wasteful number, since it uses less digits than its factorization.

4221223423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12165256.

The product of its digits is 4608, while the sum is 25.

The square root of 4221223423 is about 64970.9429129669. The cubic root of 4221223423 is about 1616.1417382490.

Adding to 4221223423 its reverse (3243221224), we get a palindrome (7464444647).

The spelling of 4221223423 in words is "four billion, two hundred twenty-one million, two hundred twenty-three thousand, four hundred twenty-three".