2021200423200 has 432 divisors, whose sum is σ = 8149342533696. Its totient is φ = 461767219200.

The previous prime is 2021200423171. The next prime is 2021200423201. The reversal of 2021200423200 is 23240021202.

2021200423200 is a `hidden beast` number, since 2 + 0 + 21 + 20 + 0 + 423 + 200 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (2021200423201) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 119993979 + ... + 120010821.

It is an arithmetic number, because the mean of its divisors is an integer number (18864218828).

Almost surely, 2^{2021200423200} is an apocalyptic number.

2021200423200 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 2021200423200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4074671266848).

2021200423200 is an abundant number, since it is smaller than the sum of its proper divisors (6128142110496).

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

2021200423200 is a wasteful number, since it uses less digits than its factorization.

2021200423200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19257 (or 19241 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 2021200423200 its reverse (23240021202), we get a palindrome (2044440444402).

The spelling of 2021200423200 in words is "two trillion, twenty-one billion, two hundred million, four hundred twenty-three thousand, two hundred".