11480221 has 4 divisors (see below), whose sum is σ = 11508700. Its totient is φ = 11451744.

The previous prime is 11480177. The next prime is 11480251. The reversal of 11480221 is 12208411.

It is a happy number.

11480221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6125625 + 5354596 = 2475^2 + 2314^2 .

It is a cyclic number.

It is not a de Polignac number, because 11480221 - 2¹⁵ = 11447453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11480251) 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, 13626 + ... + 14443.

It is an arithmetic number, because the mean of its divisors is an integer number (2877175).

Almost surely, 2^11480221 is an apocalyptic number.

It is an amenable number.

11480221 is a deficient number, since it is larger than the sum of its proper divisors (28479).

11480221 is an equidigital number, since it uses as much as digits as its factorization.

11480221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28478.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 11480221 is about 3388.2474821063. The cubic root of 11480221 is about 225.5883924770.

Adding to 11480221 its reverse (12208411), we get a palindrome (23688632).

The spelling of 11480221 in words is "eleven million, four hundred eighty thousand, two hundred twenty-one".