11232220 has 24 divisors (see below), whose sum is σ = 23889600. Its totient is φ = 4435392.

The previous prime is 11232217. The next prime is 11232227. The reversal of 11232220 is 2223211.

It is a super-2 number, since 2×11232220² = 252325532256800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11232220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11232227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975 + ... + 5134.

It is an arithmetic number, because the mean of its divisors is an integer number (995400).

Almost surely, 2^11232220 is an apocalyptic number.

11232220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11232220 is an abundant number, since it is smaller than the sum of its proper divisors (12657380).

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

11232220 is a wasteful number, since it uses less digits than its factorization.

11232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7197 (or 7195 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 11232220 is about 3351.4504322756. The cubic root of 11232220 is about 223.9521315655.

Adding to 11232220 its reverse (2223211), we get a palindrome (13455431).

Subtracting from 11232220 its reverse (2223211), we obtain a palindrome (9009009).

The spelling of 11232220 in words is "eleven million, two hundred thirty-two thousand, two hundred twenty".