201201021212 has 12 divisors (see below), whose sum is σ = 354047102136. Its totient is φ = 100044706320.

The previous prime is 201201021209. The next prime is 201201021251. The reversal of 201201021212 is 212120102102.

201201021212 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138950258 + ... + 138951705.

It is an arithmetic number, because the mean of its divisors is an integer number (29503925178).

Almost surely, 2^201201021212 is an apocalyptic number.

It is an amenable number.

201201021212 is a deficient number, since it is larger than the sum of its proper divisors (152846080924).

201201021212 is a wasteful number, since it uses less digits than its factorization.

201201021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277902148 (or 277902146 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201201021212 its reverse (212120102102), we get a palindrome (413321123314).

The spelling of 201201021212 in words is "two hundred one billion, two hundred one million, twenty-one thousand, two hundred twelve".