11000220 has 96 divisors (see below), whose sum is σ = 38416896. Its totient is φ = 2284800.

The previous prime is 11000189. The next prime is 11000273. The reversal of 11000220 is 2200011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 11000199 and 11000208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3430 + ... + 5810.

It is an arithmetic number, because the mean of its divisors is an integer number (400176).

Almost surely, 2^11000220 is an apocalyptic number.

11000220 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 11000220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19208448).

11000220 is an abundant number, since it is smaller than the sum of its proper divisors (27416676).

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

11000220 is a wasteful number, since it uses less digits than its factorization.

11000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411 (or 2409 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 11000220 is about 3316.6579564375. The cubic root of 11000220 is about 222.3994917004.

Adding to 11000220 its reverse (2200011), we get a palindrome (13200231).

The spelling of 11000220 in words is "eleven million, two hundred twenty", and thus it is an aban number.