4402121441 has 2 divisors, whose sum is σ = 4402121442. Its totient is φ = 4402121440.

The previous prime is 4402121407. The next prime is 4402121443. The reversal of 4402121441 is 1441212044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3058532416 + 1343589025 = 55304^2 + 36655^2 .

It is a cyclic number.

It is not a de Polignac number, because 4402121441 - 2⁶ = 4402121377 is a prime.

It is a Sophie Germain prime.

Together with 4402121443, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4402121443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2201060720 + 2201060721.

It is an arithmetic number, because the mean of its divisors is an integer number (2201060721).

Almost surely, 2^4402121441 is an apocalyptic number.

It is an amenable number.

4402121441 is a deficient number, since it is larger than the sum of its proper divisors (1).

4402121441 is an equidigital number, since it uses as much as digits as its factorization.

4402121441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 4402121441 is about 66348.4848432879. The cubic root of 4402121441 is about 1638.9058536959.

Adding to 4402121441 its reverse (1441212044), we get a palindrome (5843333485).

The spelling of 4402121441 in words is "four billion, four hundred two million, one hundred twenty-one thousand, four hundred forty-one".