201221222222212 has 12 divisors (see below), whose sum is σ = 352291112293120. Its totient is φ = 100566618709896.

The previous prime is 201221222222191. The next prime is 201221222222239. The reversal of 201221222222212 is 212222222122102.

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, 10998090012 + ... + 10998108307.

Almost surely, 2^{201221222222212} is an apocalyptic number.

It is an amenable number.

201221222222212 is a deficient number, since it is larger than the sum of its proper divisors (151069890070908).

201221222222212 is a wasteful number, since it uses less digits than its factorization.

201221222222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21996200610 (or 21996200608 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 201221222222212 its reverse (212222222122102), we get a palindrome (413443444344314).

The spelling of 201221222222212 in words is "two hundred one trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".