20211200100200 has 192 divisors, whose sum is σ = 47574982446720. Its totient is φ = 7984738944000.

The previous prime is 20211200100107. The next prime is 20211200100253. The reversal of 20211200100200 is 200100211202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7241560805 + ... + 7241563595.

It is an arithmetic number, because the mean of its divisors is an integer number (247786366910).

Almost surely, 2^{20211200100200} is an apocalyptic number.

20211200100200 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 20211200100200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23787491223360).

20211200100200 is an abundant number, since it is smaller than the sum of its proper divisors (27363782346520).

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

20211200100200 is a wasteful number, since it uses less digits than its factorization.

20211200100200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268 (or 4259 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20211200100200 its reverse (200100211202), we get a palindrome (20411300311402).

The spelling of 20211200100200 in words is "twenty trillion, two hundred eleven billion, two hundred million, one hundred thousand, two hundred".