4444212109 has 2 divisors, whose sum is σ = 4444212110. Its totient is φ = 4444212108.

The previous prime is 4444212089. The next prime is 4444212137. The reversal of 4444212109 is 9012124444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3999930025 + 444282084 = 63245^2 + 21078^2 .

It is a cyclic number.

It is not a de Polignac number, because 4444212109 - 2¹¹ = 4444210061 is a prime.

It is a super-3 number, since 3×4444212109³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4444212809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222106054 + 2222106055.

It is an arithmetic number, because the mean of its divisors is an integer number (2222106055).

Almost surely, 2^4444212109 is an apocalyptic number.

It is an amenable number.

4444212109 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444212109 is an equidigital number, since it uses as much as digits as its factorization.

4444212109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 4444212109 is about 66664.9241280600. The cubic root of 4444212109 is about 1644.1127329638.

The spelling of 4444212109 in words is "four billion, four hundred forty-four million, two hundred twelve thousand, one hundred nine".