2222010221 has 2 divisors, whose sum is σ = 2222010222. Its totient is φ = 2222010220.

The previous prime is 2222010199. The next prime is 2222010227. The reversal of 2222010221 is 1220102222.

2222010221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1389052900 + 832957321 = 37270^2 + 28861^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222010221 - 2¹⁰ = 2222009197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2222010196 and 2222010205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222010227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111005110 + 1111005111.

It is an arithmetic number, because the mean of its divisors is an integer number (1111005111).

Almost surely, 2^2222010221 is an apocalyptic number.

It is an amenable number.

2222010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222010221 is an equidigital number, since it uses as much as digits as its factorization.

2222010221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2222010221 is about 47138.2034129431. The cubic root of 2222010221 is about 1304.9143812337.

Adding to 2222010221 its reverse (1220102222), we get a palindrome (3442112443).

The spelling of 2222010221 in words is "two billion, two hundred twenty-two million, ten thousand, two hundred twenty-one".