4085880221 has 2 divisors, whose sum is σ = 4085880222. Its totient is φ = 4085880220.

The previous prime is 4085880217. The next prime is 4085880247. The reversal of 4085880221 is 1220885804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2678580025 + 1407300196 = 51755^2 + 37514^2 .

It is a cyclic number.

It is not a de Polignac number, because 4085880221 - 2² = 4085880217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4085850221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2042940110 + 2042940111.

It is an arithmetic number, because the mean of its divisors is an integer number (2042940111).

Almost surely, 2^4085880221 is an apocalyptic number.

It is an amenable number.

4085880221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4085880221 is an equidigital number, since it uses as much as digits as its factorization.

4085880221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 4085880221 is about 63920.8903332862. The cubic root of 4085880221 is about 1598.6812337761.

The spelling of 4085880221 in words is "four billion, eighty-five million, eight hundred eighty thousand, two hundred twenty-one".