11220306 has 32 divisors (see below), whose sum is σ = 24349248. Its totient is φ = 3432960.

The previous prime is 11220301. The next prime is 11220311. The reversal of 11220306 is 60302211.

11220306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11220301) and next prime (11220311).

It is not an unprimeable number, because it can be changed into a prime (11220301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2841 + ... + 5523.

It is an arithmetic number, because the mean of its divisors is an integer number (760914).

Almost surely, 2^11220306 is an apocalyptic number.

11220306 is an abundant number, since it is smaller than the sum of its proper divisors (13128942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11220306 is a wasteful number, since it uses less digits than its factorization.

11220306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 11220306 is about 3349.6725213071. The cubic root of 11220306 is about 223.8729216490.

Adding to 11220306 its reverse (60302211), we get a palindrome (71522517).

The spelling of 11220306 in words is "eleven million, two hundred twenty thousand, three hundred six".