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11202209 is a prime number

11202209 has 2 divisors, whose sum is σ = 11202210. Its totient is φ = 11202208.

The previous prime is 11202187. The next prime is 11202221. The reversal of 11202209 is 90220211.

11202209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9985600 + 1216609 = 3160^2 + 1103^2 .

It is an emirp because it is prime and its reverse (90220211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11202209 - 212 = 11198113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11202259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601104 + 5601105.

It is an arithmetic number, because the mean of its divisors is an integer number (5601105).

Almost surely, 211202209 is an apocalyptic number.

It is an amenable number.

11202209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11202209 is an equidigital number, since it uses as much as digits as its factorization.

11202209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 11202209 is about 3346.9701223644. The cubic root of 11202209 is about 223.7524968771.

It can be divided in two parts, 11202 and 209, that added together give a palindrome (11411).

The spelling of 11202209 in words is "eleven million, two hundred two thousand, two hundred nine".