201111020201 has 16 divisors (see below), whose sum is σ = 248548341888. Its totient is φ = 158460537600.

The previous prime is 201111020197. The next prime is 201111020207. The reversal of 201111020201 is 102020111102.

201111020201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 201111020201 - 2² = 201111020197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201111020207) by changing a digit.

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, 4563155 + ... + 4607016.

It is an arithmetic number, because the mean of its divisors is an integer number (15534271368).

Almost surely, 2^201111020201 is an apocalyptic number.

It is an amenable number.

201111020201 is a deficient number, since it is larger than the sum of its proper divisors (47437321687).

201111020201 is a wasteful number, since it uses less digits than its factorization.

201111020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9170432.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201111020201 its reverse (102020111102), we get a palindrome (303131131303).

Subtracting from 201111020201 its reverse (102020111102), we obtain a palindrome (99090909099).

The spelling of 201111020201 in words is "two hundred one billion, one hundred eleven million, twenty thousand, two hundred one".