2112121110 has 32 divisors (see below), whose sum is σ = 5529917952. Its totient is φ = 512029280.

The previous prime is 2112121097. The next prime is 2112121133. The reversal of 2112121110 is 111212112.

It is a super-2 number, since 2×2112121110² = 8922111166615264200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3199854 + ... + 3200513.

It is an arithmetic number, because the mean of its divisors is an integer number (172809936).

Almost surely, 2^2112121110 is an apocalyptic number.

2112121110 is an abundant number, since it is smaller than the sum of its proper divisors (3417796842).

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

2112121110 is a wasteful number, since it uses less digits than its factorization.

2112121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6400388.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 2112121110 is about 45957.8188124719. The cubic root of 2112121110 is about 1283.0382558025.

Adding to 2112121110 its reverse (111212112), we get a palindrome (2223333222).

The spelling of 2112121110 in words is "two billion, one hundred twelve million, one hundred twenty-one thousand, one hundred ten".