2320002221 has 2 divisors, whose sum is σ = 2320002222. Its totient is φ = 2320002220.

The previous prime is 2320002151. The next prime is 2320002227. The reversal of 2320002221 is 1222000232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1196814025 + 1123188196 = 34595^2 + 33514^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320002221 - 2¹⁰ = 2320001197 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 = 2320002196 and 2320002205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2320002227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160001110 + 1160001111.

It is an arithmetic number, because the mean of its divisors is an integer number (1160001111).

Almost surely, 2^2320002221 is an apocalyptic number.

It is an amenable number.

2320002221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320002221 is an equidigital number, since it uses as much as digits as its factorization.

2320002221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2320002221 is about 48166.4013706650. The cubic root of 2320002221 is about 1323.8216120486.

Adding to 2320002221 its reverse (1222000232), we get a palindrome (3542002453).

The spelling of 2320002221 in words is "two billion, three hundred twenty million, two thousand, two hundred twenty-one".