1100227220 has 24 divisors (see below), whose sum is σ = 2322096000. Its totient is φ = 437877792.

The previous prime is 1100227207. The next prime is 1100227237. The reversal of 1100227220 is 227220011.

It is a super-3 number, since 3×1100227220³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134240 + ... + 142199.

It is an arithmetic number, because the mean of its divisors is an integer number (96754000).

Almost surely, 2^1100227220 is an apocalyptic number.

1100227220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100227220 is an abundant number, since it is smaller than the sum of its proper divisors (1221868780).

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

1100227220 is a wasteful number, since it uses less digits than its factorization.

1100227220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276647 (or 276645 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1100227220 is about 33169.6731970636. The cubic root of 1100227220 is about 1032.3511877411.

Adding to 1100227220 its reverse (227220011), we get a palindrome (1327447231).

The spelling of 1100227220 in words is "one billion, one hundred million, two hundred twenty-seven thousand, two hundred twenty".