2008221 has 16 divisors (see below), whose sum is σ = 2842560. Its totient is φ = 1258880.

The previous prime is 2008219. The next prime is 2008231. The reversal of 2008221 is 1228002.

2008221 = 201² + 202² + ... + 241².

It is a cyclic number.

It is not a de Polignac number, because 2008221 - 2¹ = 2008219 is a prime.

It is a Curzon number.

2008221 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2008221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2008231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3286 + ... + 3848.

It is an arithmetic number, because the mean of its divisors is an integer number (177660).

2^2008221 is an apocalyptic number.

It is an amenable number.

2008221 is a deficient number, since it is larger than the sum of its proper divisors (834339).

2008221 is a wasteful number, since it uses less digits than its factorization.

2008221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2008221 is about 1417.1171440640. The cubic root of 2008221 is about 126.1644991786.

The spelling of 2008221 in words is "two million, eight thousand, two hundred twenty-one".