2012021988 has 24 divisors (see below), whose sum is σ = 4695714240. Its totient is φ = 670531680.

The previous prime is 2012021971. The next prime is 2012021989. The reversal of 2012021988 is 8891202102.

It is not an unprimeable number, because it can be changed into a prime (2012021989) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 52098 + ... + 82086.

It is an arithmetic number, because the mean of its divisors is an integer number (195654760).

Almost surely, 2^2012021988 is an apocalyptic number.

It is an amenable number.

2012021988 is an abundant number, since it is smaller than the sum of its proper divisors (2683692252).

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

2012021988 is a wasteful number, since it uses less digits than its factorization.

2012021988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35587 (or 35585 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 2012021988 is about 44855.5680824577. The cubic root of 2012021988 is about 1262.4404678395.

The spelling of 2012021988 in words is "two billion, twelve million, twenty-one thousand, nine hundred eighty-eight".