201221010210212 has 48 divisors (see below), whose sum is σ = 371139852545280. Its totient is φ = 95194525860000.

The previous prime is 201221010210179. The next prime is 201221010210263. The reversal of 201221010210212 is 212012010122102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254169587 + ... + 254960037.

It is an arithmetic number, because the mean of its divisors is an integer number (7732080261360).

Almost surely, 2^{201221010210212} is an apocalyptic number.

It is an amenable number.

201221010210212 is a deficient number, since it is larger than the sum of its proper divisors (169918842335068).

201221010210212 is a wasteful number, since it uses less digits than its factorization.

201221010210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794712 (or 794710 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201221010210212 its reverse (212012010122102), we get a palindrome (413233020332314).

The spelling of 201221010210212 in words is "two hundred one trillion, two hundred twenty-one billion, ten million, two hundred ten thousand, two hundred twelve".