1121110220 has 24 divisors (see below), whose sum is σ = 2492822304. Its totient is φ = 422064896.

The previous prime is 1121110171. The next prime is 1121110231. The reversal of 1121110220 is 220111211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1648352 + ... + 1649031.

It is an arithmetic number, because the mean of its divisors is an integer number (103867596).

Almost surely, 2^1121110220 is an apocalyptic number.

1121110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121110220 is an abundant number, since it is smaller than the sum of its proper divisors (1371712084).

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

1121110220 is a wasteful number, since it uses less digits than its factorization.

1121110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297409 (or 3297407 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1121110220 is about 33482.9840366715. The cubic root of 1121110220 is about 1038.8418505504.

Adding to 1121110220 its reverse (220111211), we get a palindrome (1341221431).

Subtracting from 1121110220 its reverse (220111211), we obtain a palindrome (900999009).

The spelling of 1121110220 in words is "one billion, one hundred twenty-one million, one hundred ten thousand, two hundred twenty".