211200112212 has 12 divisors (see below), whose sum is σ = 492800261856. Its totient is φ = 70400037400.

The previous prime is 211200112199. The next prime is 211200112219. The reversal of 211200112212 is 212211002112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×211200112212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211200112191 and 211200112200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211200112219) 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 3 ways as a sum of consecutive naturals, for example, 8800004664 + ... + 8800004687.

It is an arithmetic number, because the mean of its divisors is an integer number (41066688488).

Almost surely, 2^211200112212 is an apocalyptic number.

It is an amenable number.

211200112212 is an abundant number, since it is smaller than the sum of its proper divisors (281600149644).

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

211200112212 is a wasteful number, since it uses less digits than its factorization.

211200112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17600009358 (or 17600009356 counting only the distinct ones).

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

Adding to 211200112212 its reverse (212211002112), we get a palindrome (423411114324).

The spelling of 211200112212 in words is "two hundred eleven billion, two hundred million, one hundred twelve thousand, two hundred twelve".