201112222211 has 4 divisors (see below), whose sum is σ = 201224640000. Its totient is φ = 200999804424.

The previous prime is 201112222169. The next prime is 201112222229. The reversal of 201112222211 is 112222211102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201112222211 is a prime.

It is a super-2 number, since 2×201112222211² (a number of 23 digits) contains 22 as substring.

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 201112222211.

It is not an unprimeable number, because it can be changed into a prime (201112222411) 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, 56206211 + ... + 56209788.

It is an arithmetic number, because the mean of its divisors is an integer number (50306160000).

Almost surely, 2^201112222211 is an apocalyptic number.

201112222211 is a deficient number, since it is larger than the sum of its proper divisors (112417789).

201112222211 is a wasteful number, since it uses less digits than its factorization.

201112222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112417788.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201112222211 its reverse (112222211102), we get a palindrome (313334433313).

The spelling of 201112222211 in words is "two hundred one billion, one hundred twelve million, two hundred twenty-two thousand, two hundred eleven".