201111122321 has 8 divisors (see below), whose sum is σ = 201401479104. Its totient is φ = 200820962160.

The previous prime is 201111122237. The next prime is 201111122327. The reversal of 201111122321 is 123221111102.

It is a happy number.

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-201111122321 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 201111122321.

It is not an unprimeable number, because it can be changed into a prime (201111122327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2062940 + ... + 2158226.

It is an arithmetic number, because the mean of its divisors is an integer number (25175184888).

Almost surely, 2^201111122321 is an apocalyptic number.

It is an amenable number.

201111122321 is a deficient number, since it is larger than the sum of its proper divisors (290356783).

201111122321 is a wasteful number, since it uses less digits than its factorization.

201111122321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98311.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 201111122321 its reverse (123221111102), we get a palindrome (324332233423).

The spelling of 201111122321 in words is "two hundred one billion, one hundred eleven million, one hundred twenty-two thousand, three hundred twenty-one".