201112001002221 has 16 divisors (see below), whose sum is σ = 283934935764864. Its totient is φ = 126182539610624.

The previous prime is 201112001002201. The next prime is 201112001002223. The reversal of 201112001002221 is 122200100211102.

It is a cyclic number.

It is not a de Polignac number, because 201112001002221 - 2¹⁷ = 201112000871149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201112001002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112001002223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82895400 + ... + 85286993.

It is an arithmetic number, because the mean of its divisors is an integer number (17745933485304).

Almost surely, 2^{201112001002221} is an apocalyptic number.

It is an amenable number.

201112001002221 is a deficient number, since it is larger than the sum of its proper divisors (82822934762643).

201112001002221 is a wasteful number, since it uses less digits than its factorization.

201112001002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168205860.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201112001002221 its reverse (122200100211102), we get a palindrome (323312101213323).

The spelling of 201112001002221 in words is "two hundred one trillion, one hundred twelve billion, one million, two thousand, two hundred twenty-one".