4424240234221 has 2 divisors, whose sum is σ = 4424240234222. Its totient is φ = 4424240234220.

The previous prime is 4424240234189. The next prime is 4424240234243. The reversal of 4424240234221 is 1224320424244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4423303017225 + 937216996 = 2103165^2 + 30614^2 .

It is a cyclic number.

It is not a de Polignac number, because 4424240234221 - 2⁵ = 4424240234189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4424240234261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2212120117110 + 2212120117111.

It is an arithmetic number, because the mean of its divisors is an integer number (2212120117111).

Almost surely, 2^{4424240234221} is an apocalyptic number.

It is an amenable number.

4424240234221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4424240234221 is an equidigital number, since it uses as much as digits as its factorization.

4424240234221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 4424240234221 its reverse (1224320424244), we get a palindrome (5648560658465).

The spelling of 4424240234221 in words is "four trillion, four hundred twenty-four billion, two hundred forty million, two hundred thirty-four thousand, two hundred twenty-one".