2121160116 has 24 divisors (see below), whose sum is σ = 4963170240. Its totient is φ = 705082432.

The previous prime is 2121160109. The next prime is 2121160121. The reversal of 2121160116 is 6110611212.

It is a junction number, because it is equal to n+sod(n) for n = 2121160092 and 2121160101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241881 + ... + 250496.

It is an arithmetic number, because the mean of its divisors is an integer number (206798760).

Almost surely, 2^2121160116 is an apocalyptic number.

It is an amenable number.

2121160116 is an abundant number, since it is smaller than the sum of its proper divisors (2842010124).

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

2121160116 is a wasteful number, since it uses less digits than its factorization.

2121160116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492743 (or 492741 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 2121160116 is about 46056.0540645853. The cubic root of 2121160116 is about 1284.8659422999.

Adding to 2121160116 its reverse (6110611212), we get a palindrome (8231771328).

The spelling of 2121160116 in words is "two billion, one hundred twenty-one million, one hundred sixty thousand, one hundred sixteen".