211200111212 has 48 divisors (see below), whose sum is σ = 373719047520. Its totient is φ = 104432025600.

The previous prime is 211200111179. The next prime is 211200111217. The reversal of 211200111212 is 212111002112.

It is a super-2 number, since 2×211200111212² (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 99107387 + ... + 99109517.

It is an arithmetic number, because the mean of its divisors is an integer number (7785813490).

Almost surely, 2^211200111212 is an apocalyptic number.

It is an amenable number.

211200111212 is a deficient number, since it is larger than the sum of its proper divisors (162518936308).

211200111212 is a wasteful number, since it uses less digits than its factorization.

211200111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042 (or 3040 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211200111212 its reverse (212111002112), we get a palindrome (423311113324).

The spelling of 211200111212 in words is "two hundred eleven billion, two hundred million, one hundred eleven thousand, two hundred twelve".