2165110212 has 48 divisors (see below), whose sum is σ = 5134498880. Its totient is φ = 709959168.

The previous prime is 2165110193. The next prime is 2165110219. The reversal of 2165110212 is 2120115612.

It is not an unprimeable number, because it can be changed into a prime (2165110219) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 355263 + ... + 361305.

Almost surely, 2^2165110212 is an apocalyptic number.

It is an amenable number.

2165110212 is an abundant number, since it is smaller than the sum of its proper divisors (2969388668).

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

2165110212 is a wasteful number, since it uses less digits than its factorization.

2165110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6532 (or 6530 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 2165110212 is about 46530.7448038391. The cubic root of 2165110212 is about 1293.6794202295.

Adding to 2165110212 its reverse (2120115612), we get a palindrome (4285225824).

The spelling of 2165110212 in words is "two billion, one hundred sixty-five million, one hundred ten thousand, two hundred twelve".