2222330221 has 2 divisors, whose sum is σ = 2222330222. Its totient is φ = 2222330220.

The previous prime is 2222330197. The next prime is 2222330261. The reversal of 2222330221 is 1220332222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2207966121 + 14364100 = 46989^2 + 3790^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222330221 - 2¹³ = 2222322029 is a prime.

It is a super-2 number, since 2×2222330221² = 9877503222339817682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222330261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111165110 + 1111165111.

It is an arithmetic number, because the mean of its divisors is an integer number (1111165111).

Almost surely, 2^2222330221 is an apocalyptic number.

It is an amenable number.

2222330221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222330221 is an equidigital number, since it uses as much as digits as its factorization.

2222330221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2222330221 is about 47141.5975652077. The cubic root of 2222330221 is about 1304.9770200932.

Adding to 2222330221 its reverse (1220332222), we get a palindrome (3442662443).

The spelling of 2222330221 in words is "two billion, two hundred twenty-two million, three hundred thirty thousand, two hundred twenty-one".