12028821000 has 128 divisors (see below), whose sum is σ = 42891413760. Its totient is φ = 2749440000.

The previous prime is 12028820983. The next prime is 12028821031. The reversal of 12028821000 is 12882021.

12028821000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 31 ways as a sum of consecutive naturals, for example, 265401 + ... + 307400.

It is an arithmetic number, because the mean of its divisors is an integer number (335089170).

Almost surely, 2^12028821000 is an apocalyptic number.

12028821000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12028821000 is an abundant number, since it is smaller than the sum of its proper divisors (30862592760).

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

12028821000 is a wasteful number, since it uses less digits than its factorization.

12028821000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572832 (or 572818 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The spelling of 12028821000 in words is "twelve billion, twenty-eight million, eight hundred twenty-one thousand".