2221947323 has 2 divisors, whose sum is σ = 2221947324. Its totient is φ = 2221947322.

The previous prime is 2221947293. The next prime is 2221947337. The reversal of 2221947323 is 3237491222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221947323 - 2⁸ = 2221947067 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221947353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110973661 + 1110973662.

It is an arithmetic number, because the mean of its divisors is an integer number (1110973662).

Almost surely, 2^2221947323 is an apocalyptic number.

2221947323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221947323 is an equidigital number, since it uses as much as digits as its factorization.

2221947323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 2221947323 is about 47137.5362423621. The cubic root of 2221947323 is about 1304.9020684671.

The spelling of 2221947323 in words is "two billion, two hundred twenty-one million, nine hundred forty-seven thousand, three hundred twenty-three".