1101110220 has 96 divisors (see below), whose sum is σ = 3915072000. Its totient is φ = 251681472.

The previous prime is 1101110191. The next prime is 1101110221. The reversal of 1101110220 is 220111011.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1101110221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141870 + ... + 149429.

It is an arithmetic number, because the mean of its divisors is an integer number (40782000).

Almost surely, 2^1101110220 is an apocalyptic number.

1101110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101110220 is an abundant number, since it is smaller than the sum of its proper divisors (2813961780).

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

1101110220 is a wasteful number, since it uses less digits than its factorization.

1101110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291324 (or 291316 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1101110220 is about 33182.9808787577. The cubic root of 1101110220 is about 1032.6272889949.

Adding to 1101110220 its reverse (220111011), we get a palindrome (1321221231).

The spelling of 1101110220 in words is "one billion, one hundred one million, one hundred ten thousand, two hundred twenty".