11210220 has 216 divisors, whose sum is σ = 41827968. Its totient is φ = 2419200.

The previous prime is 11210207. The next prime is 11210257. The reversal of 11210220 is 2201211.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 273400 + ... + 273440.

It is an arithmetic number, because the mean of its divisors is an integer number (193648).

Almost surely, 2^11210220 is an apocalyptic number.

11210220 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 11210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20913984).

11210220 is an abundant number, since it is smaller than the sum of its proper divisors (30617748).

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

11210220 is a wasteful number, since it uses less digits than its factorization.

11210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 11210220 is about 3348.1666625185. The cubic root of 11210220 is about 223.8058213044.

Adding to 11210220 its reverse (2201211), we get a palindrome (13411431).

Subtracting from 11210220 its reverse (2201211), we obtain a palindrome (9009009).

The spelling of 11210220 in words is "eleven million, two hundred ten thousand, two hundred twenty".