4221422443 has 16 divisors (see below), whose sum is σ = 4993136064. Its totient is φ = 3493693440.

The previous prime is 4221422441. The next prime is 4221422477. The reversal of 4221422443 is 3442241224.

It is a cyclic number.

It is not a de Polignac number, because 4221422443 - 2¹ = 4221422441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4221422441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47980 + ... + 103657.

It is an arithmetic number, because the mean of its divisors is an integer number (312071004).

Almost surely, 2^4221422443 is an apocalyptic number.

4221422443 is a deficient number, since it is larger than the sum of its proper divisors (771713621).

4221422443 is a wasteful number, since it uses less digits than its factorization.

4221422443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151782.

The product of its digits is 12288, while the sum is 28.

The square root of 4221422443 is about 64972.4745026692. The cubic root of 4221422443 is about 1616.1671368473.

Adding to 4221422443 its reverse (3442241224), we get a palindrome (7663663667).

The spelling of 4221422443 in words is "four billion, two hundred twenty-one million, four hundred twenty-two thousand, four hundred forty-three".