201221112200212 has 48 divisors (see below), whose sum is σ = 380608983014400. Its totient is φ = 92532806922240.

The previous prime is 201221112200189. The next prime is 201221112200239. The reversal of 201221112200212 is 212002211122102.

It is a self number, because there is not a number n which added to its sum of digits gives 201221112200212.

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 15 ways as a sum of consecutive naturals, for example, 9664489 + ... + 22267567.

It is an arithmetic number, because the mean of its divisors is an integer number (7929353812800).

Almost surely, 2^{201221112200212} is an apocalyptic number.

It is an amenable number.

201221112200212 is a deficient number, since it is larger than the sum of its proper divisors (179387870814188).

201221112200212 is a wasteful number, since it uses less digits than its factorization.

201221112200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12604216 (or 12604214 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201221112200212 its reverse (212002211122102), we get a palindrome (413223323322314).

The spelling of 201221112200212 in words is "two hundred one trillion, two hundred twenty-one billion, one hundred twelve million, two hundred thousand, two hundred twelve".