100821204000 has 576 divisors, whose sum is σ = 398721802752. Its totient is φ = 23917056000.

The previous prime is 100821203933. The next prime is 100821204041. The reversal of 100821204000 is 402128001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 18609292 + ... + 18614708.

It is an arithmetic number, because the mean of its divisors is an integer number (692225352).

Almost surely, 2^100821204000 is an apocalyptic number.

100821204000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100821204000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199360901376).

100821204000 is an abundant number, since it is smaller than the sum of its proper divisors (297900598752).

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

100821204000 is a wasteful number, since it uses less digits than its factorization.

100821204000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506 (or 5485 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The spelling of 100821204000 in words is "one hundred billion, eight hundred twenty-one million, two hundred four thousand".