211100123200 has 84 divisors (see below), whose sum is σ = 546777174160. Its totient is φ = 79995824640.

The previous prime is 211100123191. The next prime is 211100123203. The reversal of 211100123200 is 2321001112.

It is not an unprimeable number, because it can be changed into a prime (211100123203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3441642 + ... + 3502441.

Almost surely, 2^211100123200 is an apocalyptic number.

211100123200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211100123200 is an abundant number, since it is smaller than the sum of its proper divisors (335677050960).

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

211100123200 is a wasteful number, since it uses less digits than its factorization.

211100123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6944124 (or 6944109 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 211100123200 its reverse (2321001112), we get a palindrome (213421124312).

The spelling of 211100123200 in words is "two hundred eleven billion, one hundred million, one hundred twenty-three thousand, two hundred".