201211021211201 has 8 divisors (see below), whose sum is σ = 201337044249600. Its totient is φ = 201085000326640.

The previous prime is 201211021211113. The next prime is 201211021211203. The reversal of 201211021211201 is 102112120112102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201211021211201 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 201211021211201.

It is not an unprimeable number, because it can be changed into a prime (201211021211203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212768315 + ... + 213711903.

It is an arithmetic number, because the mean of its divisors is an integer number (25167130531200).

Almost surely, 2^{201211021211201} is an apocalyptic number.

It is an amenable number.

201211021211201 is a deficient number, since it is larger than the sum of its proper divisors (126023038399).

201211021211201 is a wasteful number, since it uses less digits than its factorization.

201211021211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076919.

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

Adding to 201211021211201 its reverse (102112120112102), we get a palindrome (303323141323303).

The spelling of 201211021211201 in words is "two hundred one trillion, two hundred eleven billion, twenty-one million, two hundred eleven thousand, two hundred one".