4144043221 has 2 divisors, whose sum is σ = 4144043222. Its totient is φ = 4144043220.

The previous prime is 4144043213. The next prime is 4144043273. The reversal of 4144043221 is 1223404414.

4144043221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2757300100 + 1386743121 = 52510^2 + 37239^2 .

It is a cyclic number.

It is not a de Polignac number, because 4144043221 - 2³ = 4144043213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4144043201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072021610 + 2072021611.

It is an arithmetic number, because the mean of its divisors is an integer number (2072021611).

Almost surely, 2^4144043221 is an apocalyptic number.

It is an amenable number.

4144043221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4144043221 is an equidigital number, since it uses as much as digits as its factorization.

4144043221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 4144043221 is about 64374.2434596322. The cubic root of 4144043221 is about 1606.2313278253.

Adding to 4144043221 its reverse (1223404414), we get a palindrome (5367447635).

The spelling of 4144043221 in words is "four billion, one hundred forty-four million, forty-three thousand, two hundred twenty-one".