2221332247 has 2 divisors, whose sum is σ = 2221332248. Its totient is φ = 2221332246.

The previous prime is 2221332229. The next prime is 2221332277. The reversal of 2221332247 is 7422331222.

2221332247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221332247 - 2⁷ = 2221332119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221332277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110666123 + 1110666124.

It is an arithmetic number, because the mean of its divisors is an integer number (1110666124).

Almost surely, 2^2221332247 is an apocalyptic number.

2221332247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221332247 is an equidigital number, since it uses as much as digits as its factorization.

2221332247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 28.

The square root of 2221332247 is about 47131.0115210781. The cubic root of 2221332247 is about 1304.7816503685.

Adding to 2221332247 its reverse (7422331222), we get a palindrome (9643663469).

The spelling of 2221332247 in words is "two billion, two hundred twenty-one million, three hundred thirty-two thousand, two hundred forty-seven".