201222101222212 has 24 divisors (see below), whose sum is σ = 405381751375104. Its totient is φ = 85608568610112.

The previous prime is 201222101222201. The next prime is 201222101222237. The reversal of 201222101222212 is 212222101222102.

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, 26228111548 + ... + 26228119219.

It is an arithmetic number, because the mean of its divisors is an integer number (16890906307296).

Almost surely, 2^{201222101222212} is an apocalyptic number.

It is an amenable number.

201222101222212 is an abundant number, since it is smaller than the sum of its proper divisors (204159650152892).

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

201222101222212 is a wasteful number, since it uses less digits than its factorization.

201222101222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52456230915 (or 52456230913 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 201222101222212 its reverse (212222101222102), we get a palindrome (413444202444314).

The spelling of 201222101222212 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred one million, two hundred twenty-two thousand, two hundred twelve".