1100244220 has 24 divisors (see below), whose sum is σ = 2315073600. Its totient is φ = 439228992.

The previous prime is 1100244217. The next prime is 1100244227. The reversal of 1100244220 is 224420011.

It is a junction number, because it is equal to n+sod(n) for n = 1100244194 and 1100244203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100244227) 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, 43860 + ... + 64219.

It is an arithmetic number, because the mean of its divisors is an integer number (96461400).

Almost surely, 2^1100244220 is an apocalyptic number.

1100244220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100244220 is an abundant number, since it is smaller than the sum of its proper divisors (1214829380).

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

1100244220 is a wasteful number, since it uses less digits than its factorization.

1100244220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108597 (or 108595 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1100244220 is about 33169.9294542512. The cubic root of 1100244220 is about 1032.3565047882.

Adding to 1100244220 its reverse (224420011), we get a palindrome (1324664231).

It can be divided in two parts, 110024 and 4220, that added together give a square (114244 = 338²).

The spelling of 1100244220 in words is "one billion, one hundred million, two hundred forty-four thousand, two hundred twenty".