200112212120100 has 288 divisors, whose sum is σ = 700756728698880. Its totient is φ = 43041450608640.

The previous prime is 200112212120047. The next prime is 200112212120101. The reversal of 200112212120100 is 1021212211002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 200112212120100.

It is not an unprimeable number, because it can be changed into a prime (200112212120101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 195088767 + ... + 196111833.

It is an arithmetic number, because the mean of its divisors is an integer number (2433183085760).

Almost surely, 2^{200112212120100} is an apocalyptic number.

200112212120100 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 200112212120100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350378364349440).

200112212120100 is an abundant number, since it is smaller than the sum of its proper divisors (500644516578780).

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

200112212120100 is a wasteful number, since it uses less digits than its factorization.

200112212120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028587 (or 1028580 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200112212120100 its reverse (1021212211002), we get a palindrome (201133424331102).

The spelling of 200112212120100 in words is "two hundred trillion, one hundred twelve billion, two hundred twelve million, one hundred twenty thousand, one hundred".