201222221212 has 12 divisors (see below), whose sum is σ = 352142292600. Its totient is φ = 100610137616.

The previous prime is 201222221209. The next prime is 201222221227. The reversal of 201222221212 is 212122222102.

201222221212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 201222221212.

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 3 ways as a sum of consecutive naturals, for example, 427698 + ... + 765094.

It is an arithmetic number, because the mean of its divisors is an integer number (29345191050).

Almost surely, 2^201222221212 is an apocalyptic number.

It is an amenable number.

201222221212 is a deficient number, since it is larger than the sum of its proper divisors (150920071388).

201222221212 is a wasteful number, since it uses less digits than its factorization.

201222221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486500 (or 486498 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201222221212 its reverse (212122222102), we get a palindrome (413344443314).

The spelling of 201222221212 in words is "two hundred one billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twelve".