2201010221 has 2 divisors, whose sum is σ = 2201010222. Its totient is φ = 2201010220.

The previous prime is 2201010211. The next prime is 2201010241. The reversal of 2201010221 is 1220101022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1849860100 + 351150121 = 43010^2 + 18739^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201010221 - 2¹⁰ = 2201009197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201010211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100505110 + 1100505111.

It is an arithmetic number, because the mean of its divisors is an integer number (1100505111).

Almost surely, 2^2201010221 is an apocalyptic number.

It is an amenable number.

2201010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201010221 is an equidigital number, since it uses as much as digits as its factorization.

2201010221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2201010221 is about 46914.9253543049. The cubic root of 2201010221 is about 1300.7904898416.

Adding to 2201010221 its reverse (1220101022), we get a palindrome (3421111243).

The spelling of 2201010221 in words is "two billion, two hundred one million, ten thousand, two hundred twenty-one".