11232032220 has 72 divisors (see below), whose sum is σ = 35169563520. Its totient is φ = 2898587520.

The previous prime is 11232032213. The next prime is 11232032239. The reversal of 11232032220 is 2223023211.

11232032220 is a `hidden beast` number, since 1 + 1 + 2 + 320 + 322 + 20 = 666.

It is a super-2 number, since 2×11232032220² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11232032193 and 11232032202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1000875 + ... + 1012034.

It is an arithmetic number, because the mean of its divisors is an integer number (488466160).

Almost surely, 2^11232032220 is an apocalyptic number.

11232032220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11232032220 is an abundant number, since it is smaller than the sum of its proper divisors (23937531300).

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

11232032220 is a wasteful number, since it uses less digits than its factorization.

11232032220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012955 (or 2012950 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 11232032220 its reverse (2223023211), we get a palindrome (13455055431).

Subtracting from 11232032220 its reverse (2223023211), we obtain a palindrome (9009009009).

The spelling of 11232032220 in words is "eleven billion, two hundred thirty-two million, thirty-two thousand, two hundred twenty".