11230220 has 24 divisors (see below), whose sum is σ = 23652384. Its totient is φ = 4478976.

The previous prime is 11230213. The next prime is 11230231. The reversal of 11230220 is 2203211.

It is a happy number.

It is a super-2 number, since 2×11230220² = 252235682496800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9164 + ... + 10316.

It is an arithmetic number, because the mean of its divisors is an integer number (985516).

Almost surely, 2^11230220 is an apocalyptic number.

11230220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11230220 is an abundant number, since it is smaller than the sum of its proper divisors (12422164).

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

11230220 is a wasteful number, since it uses less digits than its factorization.

11230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1647 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 11230220 is about 3351.1520407167. The cubic root of 11230220 is about 223.9388385314.

Adding to 11230220 its reverse (2203211), we get a palindrome (13433431).

The spelling of 11230220 in words is "eleven million, two hundred thirty thousand, two hundred twenty".