4420410221 has 2 divisors, whose sum is σ = 4420410222. Its totient is φ = 4420410220.

The previous prime is 4420410209. The next prime is 4420410233. The reversal of 4420410221 is 1220140244.

It is a balanced prime because it is at equal distance from previous prime (4420410209) and next prime (4420410233).

It can be written as a sum of positive squares in only one way, i.e., 2699322025 + 1721088196 = 51955^2 + 41486^2 .

It is a cyclic number.

It is not a de Polignac number, because 4420410221 - 2¹⁴ = 4420393837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4420410193 and 4420410202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4420410821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210205110 + 2210205111.

It is an arithmetic number, because the mean of its divisors is an integer number (2210205111).

Almost surely, 2^4420410221 is an apocalyptic number.

It is an amenable number.

4420410221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4420410221 is an equidigital number, since it uses as much as digits as its factorization.

4420410221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 4420410221 is about 66486.1656361683. The cubic root of 4420410221 is about 1641.1723499553.

Adding to 4420410221 its reverse (1220140244), we get a palindrome (5640550465).

The spelling of 4420410221 in words is "four billion, four hundred twenty million, four hundred ten thousand, two hundred twenty-one".