11132220 has 96 divisors (see below), whose sum is σ = 34546176. Its totient is φ = 2656000.

The previous prime is 11132213. The next prime is 11132221. The reversal of 11132220 is 2223111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11132196 and 11132205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66577 + ... + 66743.

It is an arithmetic number, because the mean of its divisors is an integer number (359856).

Almost surely, 2^11132220 is an apocalyptic number.

11132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11132220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17273088).

11132220 is an abundant number, since it is smaller than the sum of its proper divisors (23413956).

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

11132220 is a wasteful number, since it uses less digits than its factorization.

11132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11132220 is about 3336.4981642435. The cubic root of 11132220 is about 223.2855371592.

Adding to 11132220 its reverse (2223111), we get a palindrome (13355331).

It can be divided in two parts, 1113 and 2220, that added together give a palindrome (3333).

The spelling of 11132220 in words is "eleven million, one hundred thirty-two thousand, two hundred twenty".