4422242021 has 4 divisors (see below), whose sum is σ = 4451528544. Its totient is φ = 4392955500.

The previous prime is 4422241951. The next prime is 4422242047. The reversal of 4422242021 is 1202422244.

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 4422242021 - 2¹⁰ = 4422240997 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 (4422242081) 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, 14643035 + ... + 14643336.

It is an arithmetic number, because the mean of its divisors is an integer number (1112882136).

Almost surely, 2^4422242021 is an apocalyptic number.

It is an amenable number.

4422242021 is a deficient number, since it is larger than the sum of its proper divisors (29286523).

4422242021 is a wasteful number, since it uses less digits than its factorization.

4422242021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29286522.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 4422242021 is about 66499.9400074917. The cubic root of 4422242021 is about 1641.3990170284.

Adding to 4422242021 its reverse (1202422244), we get a palindrome (5624664265).

The spelling of 4422242021 in words is "four billion, four hundred twenty-two million, two hundred forty-two thousand, twenty-one".