11220330 has 64 divisors (see below), whose sum is σ = 29725056. Its totient is φ = 2710400.

The previous prime is 11220311. The next prime is 11220331. The reversal of 11220330 is 3302211.

It is a happy number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11220331) 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 in 31 ways as a sum of consecutive naturals, for example, 39790 + ... + 40070.

It is an arithmetic number, because the mean of its divisors is an integer number (464454).

Almost surely, 2^11220330 is an apocalyptic number.

11220330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11220330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14862528).

11220330 is an abundant number, since it is smaller than the sum of its proper divisors (18504726).

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

11220330 is a wasteful number, since it uses less digits than its factorization.

11220330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 11220330 is about 3349.6761037450. The cubic root of 11220330 is about 223.8730812688.

Adding to 11220330 its reverse (3302211), we get a palindrome (14522541).

The spelling of 11220330 in words is "eleven million, two hundred twenty thousand, three hundred thirty".