222111201111 has 16 divisors (see below), whose sum is σ = 302681184000. Its totient is φ = 144832900608.

The previous prime is 222111201079. The next prime is 222111201113. The reversal of 222111201111 is 111102111222.

It is a happy number.

It is not a de Polignac number, because 222111201111 - 2⁵ = 222111201079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111201113) 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, 3117706 + ... + 3188151.

It is an arithmetic number, because the mean of its divisors is an integer number (18917574000).

Almost surely, 2^222111201111 is an apocalyptic number.

222111201111 is a deficient number, since it is larger than the sum of its proper divisors (80569982889).

222111201111 is a wasteful number, since it uses less digits than its factorization.

222111201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6306118.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 222111201111 its reverse (111102111222), we get a palindrome (333213312333).

The spelling of 222111201111 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred one thousand, one hundred eleven".