4221044309 has 2 divisors, whose sum is σ = 4221044310. Its totient is φ = 4221044308.

The previous prime is 4221044299. The next prime is 4221044363. The reversal of 4221044309 is 9034401224.

4221044309 is digitally balanced in base 2 and base 3, because in such bases 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., 2629433284 + 1591611025 = 51278^2 + 39895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221044309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221044369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110522154 + 2110522155.

It is an arithmetic number, because the mean of its divisors is an integer number (2110522155).

Almost surely, 2^4221044309 is an apocalyptic number.

It is an amenable number.

4221044309 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221044309 is an equidigital number, since it uses as much as digits as its factorization.

4221044309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 4221044309 is about 64969.5644821481. The cubic root of 4221044309 is about 1616.1188793384.

The spelling of 4221044309 in words is "four billion, two hundred twenty-one million, forty-four thousand, three hundred nine".