2201020221 has 16 divisors (see below), whose sum is σ = 3117945600. Its totient is φ = 1378456128.

The previous prime is 2201020201. The next prime is 2201020223. The reversal of 2201020221 is 1220201022.

2201020221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2201020221 - 2⁵ = 2201020189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2201020197 and 2201020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201020223) 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, 338661 + ... + 345098.

It is an arithmetic number, because the mean of its divisors is an integer number (194871600).

Almost surely, 2^2201020221 is an apocalyptic number.

It is an amenable number.

2201020221 is a deficient number, since it is larger than the sum of its proper divisors (916925379).

2201020221 is a wasteful number, since it uses less digits than its factorization.

2201020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683828.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2201020221 is about 46915.0319300755. The cubic root of 2201020221 is about 1300.7924598287.

Adding to 2201020221 its reverse (1220201022), we get a palindrome (3421221243).

The spelling of 2201020221 in words is "two billion, two hundred one million, twenty thousand, two hundred twenty-one".