2320622221 has 2 divisors, whose sum is σ = 2320622222. Its totient is φ = 2320622220.

The previous prime is 2320622219. The next prime is 2320622261. The reversal of 2320622221 is 1222260232.

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., 1753515625 + 567106596 = 41875^2 + 23814^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320622221 - 2¹ = 2320622219 is a prime.

Together with 2320622219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2320622192 and 2320622201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2320622201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160311110 + 1160311111.

It is an arithmetic number, because the mean of its divisors is an integer number (1160311111).

Almost surely, 2^2320622221 is an apocalyptic number.

It is an amenable number.

2320622221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320622221 is an equidigital number, since it uses as much as digits as its factorization.

2320622221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2320622221 is about 48172.8369623380. The cubic root of 2320622221 is about 1323.9395280702.

Adding to 2320622221 its reverse (1222260232), we get a palindrome (3542882453).

The spelling of 2320622221 in words is "two billion, three hundred twenty million, six hundred twenty-two thousand, two hundred twenty-one".