4055330221 has 2 divisors, whose sum is σ = 4055330222. Its totient is φ = 4055330220.

The previous prime is 4055330183. The next prime is 4055330231. The reversal of 4055330221 is 1220335504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2416214025 + 1639116196 = 49155^2 + 40486^2 .

It is a cyclic number.

It is not a de Polignac number, because 4055330221 - 2¹⁹ = 4054805933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4055330231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027665110 + 2027665111.

It is an arithmetic number, because the mean of its divisors is an integer number (2027665111).

Almost surely, 2^4055330221 is an apocalyptic number.

It is an amenable number.

4055330221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4055330221 is an equidigital number, since it uses as much as digits as its factorization.

4055330221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 4055330221 is about 63681.4747081127. The cubic root of 4055330221 is about 1594.6868317915.

Adding to 4055330221 its reverse (1220335504), we get a palindrome (5275665725).

The spelling of 4055330221 in words is "four billion, fifty-five million, three hundred thirty thousand, two hundred twenty-one".