201121220012 has 48 divisors (see below), whose sum is σ = 360278231040. Its totient is φ = 98214337728.

The previous prime is 201121219979. The next prime is 201121220039. The reversal of 201121220012 is 210022121102.

201121220012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 34595618 + ... + 34601430.

It is an arithmetic number, because the mean of its divisors is an integer number (7505796480).

Almost surely, 2^201121220012 is an apocalyptic number.

It is an amenable number.

201121220012 is a deficient number, since it is larger than the sum of its proper divisors (159157011028).

201121220012 is a wasteful number, since it uses less digits than its factorization.

201121220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7062 (or 7060 counting only the distinct ones).

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

Adding to 201121220012 its reverse (210022121102), we get a palindrome (411143341114).

The spelling of 201121220012 in words is "two hundred one billion, one hundred twenty-one million, two hundred twenty thousand, twelve".