201111121101 has 24 divisors (see below), whose sum is σ = 307556222400. Its totient is φ = 116586152320.

The previous prime is 201111121097. The next prime is 201111121109. The reversal of 201111121101 is 101121111102.

201111121101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201111121101 - 2² = 201111121097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111121109) 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 23 ways as a sum of consecutive naturals, for example, 12035676 + ... + 12052373.

It is an arithmetic number, because the mean of its divisors is an integer number (12814842600).

Almost surely, 2^201111121101 is an apocalyptic number.

It is an amenable number.

201111121101 is a deficient number, since it is larger than the sum of its proper divisors (106445101299).

201111121101 is a wasteful number, since it uses less digits than its factorization.

201111121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24088097 (or 24088086 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 201111121101 its reverse (101121111102), we get a palindrome (302232232203).

Subtracting from 201111121101 its reverse (101121111102), we obtain a palindrome (99990009999).

The spelling of 201111121101 in words is "two hundred one billion, one hundred eleven million, one hundred twenty-one thousand, one hundred one".