201201111212201 has 4 divisors (see below), whose sum is σ = 201218309370000. Its totient is φ = 201183913054404.

The previous prime is 201201111212113. The next prime is 201201111212243. The reversal of 201201111212201 is 102212111102102.

201201111212201 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201201111212201 - 2²⁶ = 201201044103337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201201111212201.

It is not an unprimeable number, because it can be changed into a prime (201201111272201) 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, 8599061351 + ... + 8599084748.

It is an arithmetic number, because the mean of its divisors is an integer number (50304577342500).

Almost surely, 2^{201201111212201} is an apocalyptic number.

It is an amenable number.

201201111212201 is a deficient number, since it is larger than the sum of its proper divisors (17198157799).

201201111212201 is a wasteful number, since it uses less digits than its factorization.

201201111212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17198157798.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201201111212201 its reverse (102212111102102), we get a palindrome (303413222314303).

The spelling of 201201111212201 in words is "two hundred one trillion, two hundred one billion, one hundred eleven million, two hundred twelve thousand, two hundred one".