212211122120200 has 192 divisors, whose sum is σ = 565145309635200. Its totient is φ = 72594405273600.

The previous prime is 212211122120119. The next prime is 212211122120273. The reversal of 212211122120200 is 2021221112212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1125747955 + ... + 1125936445.

It is an arithmetic number, because the mean of its divisors is an integer number (2943465154350).

Almost surely, 2^{212211122120200} is an apocalyptic number.

212211122120200 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 212211122120200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282572654817600).

212211122120200 is an abundant number, since it is smaller than the sum of its proper divisors (352934187515000).

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

212211122120200 is a wasteful number, since it uses less digits than its factorization.

212211122120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190320 (or 190311 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212211122120200 its reverse (2021221112212), we get a palindrome (214232343232412).

The spelling of 212211122120200 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred twenty-two million, one hundred twenty thousand, two hundred".