2243211209 has 2 divisors, whose sum is σ = 2243211210. Its totient is φ = 2243211208.

The previous prime is 2243211197. The next prime is 2243211221. The reversal of 2243211209 is 9021123422.

It is a balanced prime because it is at equal distance from previous prime (2243211197) and next prime (2243211221).

It can be written as a sum of positive squares in only one way, i.e., 1716279184 + 526932025 = 41428^2 + 22955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243211209 - 2²⁰ = 2242162633 is a prime.

It is not a weakly prime, because it can be changed into another prime (2243211259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121605604 + 1121605605.

It is an arithmetic number, because the mean of its divisors is an integer number (1121605605).

Almost surely, 2^2243211209 is an apocalyptic number.

It is an amenable number.

2243211209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243211209 is an equidigital number, since it uses as much as digits as its factorization.

2243211209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2243211209 is about 47362.5507020051. The cubic root of 2243211209 is about 1309.0514682484.

The spelling of 2243211209 in words is "two billion, two hundred forty-three million, two hundred eleven thousand, two hundred nine".