211201211200212 has 72 divisors (see below), whose sum is σ = 565619143490856. Its totient is φ = 66218727204864.

The previous prime is 211201211200207. The next prime is 211201211200223. The reversal of 211201211200212 is 212002112102112.

211201211200212 is a `hidden beast` number, since 21 + 1 + 20 + 1 + 211 + 200 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15984035984016 + 195217175216196 = 3998004^2 + 13972014^2 .

It is a super-2 number, since 2×211201211200212² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104404393 + ... + 106408080.

It is an arithmetic number, because the mean of its divisors is an integer number (7855821437373).

Almost surely, 2^{211201211200212} is an apocalyptic number.

It is an amenable number.

211201211200212 is an abundant number, since it is smaller than the sum of its proper divisors (354417932290644).

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

211201211200212 is a wasteful number, since it uses less digits than its factorization.

211201211200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210814137 (or 210814132 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211201211200212 its reverse (212002112102112), we get a palindrome (423203323302324).

The spelling of 211201211200212 in words is "two hundred eleven trillion, two hundred one billion, two hundred eleven million, two hundred thousand, two hundred twelve".