201211100000212 has 24 divisors (see below), whose sum is σ = 392455086690240. Its totient is φ = 89704019813760.

The previous prime is 201211100000189. The next prime is 201211100000221. The reversal of 201211100000212 is 212000001112102.

It is a junction number, because it is equal to n+sod(n) for n = 201211100000192 and 201211100000201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77868071464 + ... + 77868074047.

It is an arithmetic number, because the mean of its divisors is an integer number (16352295278760).

Almost surely, 2^{201211100000212} is an apocalyptic number.

It is an amenable number.

201211100000212 is a deficient number, since it is larger than the sum of its proper divisors (191243986690028).

201211100000212 is a wasteful number, since it uses less digits than its factorization.

201211100000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155736145551 (or 155736145549 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201211100000212 its reverse (212000001112102), we get a palindrome (413211101112314).

The spelling of 201211100000212 in words is "two hundred one trillion, two hundred eleven billion, one hundred million, two hundred twelve", and thus it is an aban number.