4444221113 has 2 divisors, whose sum is σ = 4444221114. Its totient is φ = 4444221112.

The previous prime is 4444220999. The next prime is 4444221143. The reversal of 4444221113 is 3111224444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4071460864 + 372760249 = 63808^2 + 19307^2 .

It is a cyclic number.

It is not a de Polignac number, because 4444221113 - 2²⁶ = 4377112249 is a prime.

It is a super-3 number, since 3×4444221113³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (4444221143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222110556 + 2222110557.

It is an arithmetic number, because the mean of its divisors is an integer number (2222110557).

Almost surely, 2^4444221113 is an apocalyptic number.

It is an amenable number.

4444221113 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444221113 is an equidigital number, since it uses as much as digits as its factorization.

4444221113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 26.

The square root of 4444221113 is about 66664.9916597910. The cubic root of 4444221113 is about 1644.1138432904.

Adding to 4444221113 its reverse (3111224444), we get a palindrome (7555445557).

The spelling of 4444221113 in words is "four billion, four hundred forty-four million, two hundred twenty-one thousand, one hundred thirteen".