211200111210 has 128 divisors (see below), whose sum is σ = 559836645120. Its totient is φ = 50565888000.

The previous prime is 211200111179. The next prime is 211200111217. The reversal of 211200111210 is 12111002112.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211200111217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13624224 + ... + 13639716.

It is an arithmetic number, because the mean of its divisors is an integer number (4373723790).

Almost surely, 2^211200111210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211200111210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279918322560).

211200111210 is an abundant number, since it is smaller than the sum of its proper divisors (348636533910).

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

211200111210 is a wasteful number, since it uses less digits than its factorization.

211200111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16024.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211200111210 its reverse (12111002112), we get a palindrome (223311113322).

The spelling of 211200111210 in words is "two hundred eleven billion, two hundred million, one hundred eleven thousand, two hundred ten".