2221614209 has 2 divisors, whose sum is σ = 2221614210. Its totient is φ = 2221614208.

The previous prime is 2221614203. The next prime is 2221614251. The reversal of 2221614209 is 9024161222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1244113984 + 977500225 = 35272^2 + 31265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221614209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221614203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110807104 + 1110807105.

It is an arithmetic number, because the mean of its divisors is an integer number (1110807105).

Almost surely, 2^2221614209 is an apocalyptic number.

It is an amenable number.

2221614209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221614209 is an equidigital number, since it uses as much as digits as its factorization.

2221614209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2221614209 is about 47134.0026838375. The cubic root of 2221614209 is about 1304.8368549692.

The spelling of 2221614209 in words is "two billion, two hundred twenty-one million, six hundred fourteen thousand, two hundred nine".