2220002209 has 4 divisors (see below), whose sum is σ = 2220915604. Its totient is φ = 2219088816.

The previous prime is 2220002207. The next prime is 2220002233. The reversal of 2220002209 is 9022000222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2168951184 + 51051025 = 46572^2 + 7145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220002209 - 2¹ = 2220002207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220002201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453042 + ... + 457915.

It is an arithmetic number, because the mean of its divisors is an integer number (555228901).

Almost surely, 2^2220002209 is an apocalyptic number.

It is an amenable number.

2220002209 is a deficient number, since it is larger than the sum of its proper divisors (913395).

2220002209 is an equidigital number, since it uses as much as digits as its factorization.

2220002209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913394.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2220002209 is about 47116.8993992601. The cubic root of 2220002209 is about 1304.5211827059.

The spelling of 2220002209 in words is "two billion, two hundred twenty million, two thousand, two hundred nine".