4244013424421 has 2 divisors, whose sum is σ = 4244013424422. Its totient is φ = 4244013424420.

The previous prime is 4244013424367. The next prime is 4244013424439. The reversal of 4244013424421 is 1244243104424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3363240559396 + 880772865025 = 1833914^2 + 938495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4244013424421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4244013424921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122006712210 + 2122006712211.

It is an arithmetic number, because the mean of its divisors is an integer number (2122006712211).

Almost surely, 2^{4244013424421} is an apocalyptic number.

It is an amenable number.

4244013424421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4244013424421 is an equidigital number, since it uses as much as digits as its factorization.

4244013424421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 4244013424421 its reverse (1244243104424), we get a palindrome (5488256528845).

The spelling of 4244013424421 in words is "four trillion, two hundred forty-four billion, thirteen million, four hundred twenty-four thousand, four hundred twenty-one".