11100220 has 24 divisors (see below), whose sum is σ = 23436000. Its totient is φ = 4416192.

The previous prime is 11100179. The next prime is 11100223. The reversal of 11100220 is 2200111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100223) 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, 2586 + ... + 5374.

It is an arithmetic number, because the mean of its divisors is an integer number (976500).

Almost surely, 2^11100220 is an apocalyptic number.

11100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100220 is an abundant number, since it is smaller than the sum of its proper divisors (12335780).

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

11100220 is a wasteful number, since it uses less digits than its factorization.

11100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997 (or 2995 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 11100220 is about 3331.6992661403. The cubic root of 11100220 is about 223.0713841730.

Adding to 11100220 its reverse (2200111), we get a palindrome (13300331).

The spelling of 11100220 in words is "eleven million, one hundred thousand, two hundred twenty".