2112012128 has 24 divisors (see below), whose sum is σ = 4160278080. Its totient is φ = 1055433600.

The previous prime is 2112012121. The next prime is 2112012143. The reversal of 2112012128 is 8212102112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112012121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 45518 + ... + 79346.

It is an arithmetic number, because the mean of its divisors is an integer number (173344920).

Almost surely, 2^2112012128 is an apocalyptic number.

It is an amenable number.

2112012128 is a deficient number, since it is larger than the sum of its proper divisors (2048265952).

2112012128 is a wasteful number, since it uses less digits than its factorization.

2112012128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35790 (or 35782 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 2112012128 is about 45956.6331229780. The cubic root of 2112012128 is about 1283.0161878633.

The spelling of 2112012128 in words is "two billion, one hundred twelve million, twelve thousand, one hundred twenty-eight".