4322222021 has 16 divisors (see below), whose sum is σ = 4676211120. Its totient is φ = 3971358720.

The previous prime is 4322221987. The next prime is 4322222053. The reversal of 4322222021 is 1202222234.

It can be written as a sum of positive squares in 8 ways, for example, as 2582164225 + 1740057796 = 50815^2 + 41714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4322222021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4322221984 and 4322222002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4322222921) 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 15 ways as a sum of consecutive naturals, for example, 4283165 + ... + 4284173.

It is an arithmetic number, because the mean of its divisors is an integer number (292263195).

Almost surely, 2^4322222021 is an apocalyptic number.

It is an amenable number.

4322222021 is a deficient number, since it is larger than the sum of its proper divisors (353989099).

4322222021 is a wasteful number, since it uses less digits than its factorization.

4322222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4322222021 is about 65743.6082140310. The cubic root of 4322222021 is about 1628.9297578796.

Adding to 4322222021 its reverse (1202222234), we get a palindrome (5524444255).

The spelling of 4322222021 in words is "four billion, three hundred twenty-two million, two hundred twenty-two thousand, twenty-one".