4424211200221 has 2 divisors, whose sum is σ = 4424211200222. Its totient is φ = 4424211200220.

The previous prime is 4424211200207. The next prime is 4424211200257. The reversal of 4424211200221 is 1220021124244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3821297774596 + 602913425625 = 1954814^2 + 776475^2 .

It is a cyclic number.

It is not a de Polignac number, because 4424211200221 - 2⁷ = 4424211200093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4424211200281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2212105600110 + 2212105600111.

It is an arithmetic number, because the mean of its divisors is an integer number (2212105600111).

Almost surely, 2^{4424211200221} is an apocalyptic number.

It is an amenable number.

4424211200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4424211200221 is an equidigital number, since it uses as much as digits as its factorization.

4424211200221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 4424211200221 its reverse (1220021124244), we get a palindrome (5644232324465).

The spelling of 4424211200221 in words is "four trillion, four hundred twenty-four billion, two hundred eleven million, two hundred thousand, two hundred twenty-one".