201201221108 has 24 divisors (see below), whose sum is σ = 355771198944. Its totient is φ = 99554309600.

The previous prime is 201201221093. The next prime is 201201221113. The reversal of 201201221108 is 801122102102.

It is a self number, because there is not a number n which added to its sum of digits gives 201201221108.

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 7 ways as a sum of consecutive naturals, for example, 152963 + ... + 652533.

It is an arithmetic number, because the mean of its divisors is an integer number (14823799956).

Almost surely, 2^201201221108 is an apocalyptic number.

It is an amenable number.

201201221108 is a deficient number, since it is larger than the sum of its proper divisors (154569977836).

201201221108 is a wasteful number, since it uses less digits than its factorization.

201201221108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500623 (or 500621 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 201201221108 in words is "two hundred one billion, two hundred one million, two hundred twenty-one thousand, one hundred eight".