200021020000000 has 288 divisors, whose sum is σ = 499407005889792. Its totient is φ = 79955136000000.

The previous prime is 200021019999953. The next prime is 200021020000027. The reversal of 200021020000000 is 20120002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45739997814 + ... + 45740002186.

It is an arithmetic number, because the mean of its divisors is an integer number (1734052103784).

Almost surely, 2^{200021020000000} is an apocalyptic number.

200021020000000 is a gapful number since it is divisible by the number (20) 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 200021020000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249703502944896).

200021020000000 is an abundant number, since it is smaller than the sum of its proper divisors (299385985889792).

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

200021020000000 is an frugal number, since it uses more digits than its factorization.

200021020000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711 (or 6667 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 200021020000000 its reverse (20120002), we get a palindrome (200021040120002).

The spelling of 200021020000000 in words is "two hundred trillion, twenty-one billion, twenty million", and thus it is an aban number.