2320776221 has 2 divisors, whose sum is σ = 2320776222. Its totient is φ = 2320776220.

The previous prime is 2320776209. The next prime is 2320776331. The reversal of 2320776221 is 1226770232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1966922500 + 353853721 = 44350^2 + 18811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2320776221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2320776421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160388110 + 1160388111.

It is an arithmetic number, because the mean of its divisors is an integer number (1160388111).

Almost surely, 2^2320776221 is an apocalyptic number.

It is an amenable number.

2320776221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320776221 is an equidigital number, since it uses as much as digits as its factorization.

2320776221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 2320776221 is about 48174.4353469763. The cubic root of 2320776221 is about 1323.9688136322.

The spelling of 2320776221 in words is "two billion, three hundred twenty million, seven hundred seventy-six thousand, two hundred twenty-one".