1116222020 has 12 divisors (see below), whose sum is σ = 2344066284. Its totient is φ = 446488800.

The previous prime is 1116222001. The next prime is 1116222061. The reversal of 1116222020 is 202226111.

It can be written as a sum of positive squares in 2 ways, for example, as 880783684 + 235438336 = 29678^2 + 15344^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1116222020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27905531 + ... + 27905570.

It is an arithmetic number, because the mean of its divisors is an integer number (195338857).

Almost surely, 2^1116222020 is an apocalyptic number.

1116222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116222020 is an abundant number, since it is smaller than the sum of its proper divisors (1227844264).

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

1116222020 is a wasteful number, since it uses less digits than its factorization.

1116222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55811110 (or 55811108 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1116222020 is about 33409.9090091548. The cubic root of 1116222020 is about 1037.3298181212.

Adding to 1116222020 its reverse (202226111), we get a palindrome (1318448131).

The spelling of 1116222020 in words is "one billion, one hundred sixteen million, two hundred twenty-two thousand, twenty".