201111202012201 has 4 divisors (see below), whose sum is σ = 216581294474692. Its totient is φ = 185641109549712.

The previous prime is 201111202012181. The next prime is 201111202012211. The reversal of 201111202012201 is 102210202111102.

201111202012201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36582223208976 + 164528978803225 = 6048324^2 + 12826885^2 .

It is a cyclic number.

It is not a de Polignac number, because 201111202012201 - 2⁵ = 201111202012169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201111202012211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7735046231226 + ... + 7735046231251.

It is an arithmetic number, because the mean of its divisors is an integer number (54145323618673).

Almost surely, 2^{201111202012201} is an apocalyptic number.

It is an amenable number.

201111202012201 is a deficient number, since it is larger than the sum of its proper divisors (15470092462491).

201111202012201 is a wasteful number, since it uses less digits than its factorization.

201111202012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15470092462490.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201111202012201 its reverse (102210202111102), we get a palindrome (303321404123303).

The spelling of 201111202012201 in words is "two hundred one trillion, one hundred eleven billion, two hundred two million, twelve thousand, two hundred one".