201112012222221 has 64 divisors (see below), whose sum is σ = 289812195578880. Its totient is φ = 123597178798080.

The previous prime is 201112012222111. The next prime is 201112012222237. The reversal of 201112012222221 is 122222210211102.

It is not a de Polignac number, because 201112012222221 - 2¹¹ = 201112012220173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112012222321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 817349005 + ... + 817595021.

It is an arithmetic number, because the mean of its divisors is an integer number (4528315555920).

Almost surely, 2^{201112012222221} is an apocalyptic number.

It is an amenable number.

201112012222221 is a deficient number, since it is larger than the sum of its proper divisors (88700183356659).

201112012222221 is a wasteful number, since it uses less digits than its factorization.

201112012222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247734.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 201112012222221 its reverse (122222210211102), we get a palindrome (323334222433323).

The spelling of 201112012222221 in words is "two hundred one trillion, one hundred twelve billion, twelve million, two hundred twenty-two thousand, two hundred twenty-one".