222111112011 has 16 divisors (see below), whose sum is σ = 306065786880. Its totient is φ = 143126645760.

The previous prime is 222111112007. The next prime is 222111112037. The reversal of 222111112011 is 110211111222.

It is a happy number.

It is not a de Polignac number, because 222111112011 - 2² = 222111112007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222111119011) 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 15 ways as a sum of consecutive naturals, for example, 1345270 + ... + 1501323.

It is an arithmetic number, because the mean of its divisors is an integer number (19129111680).

Almost surely, 2^222111112011 is an apocalyptic number.

222111112011 is a deficient number, since it is larger than the sum of its proper divisors (83954674869).

222111112011 is a wasteful number, since it uses less digits than its factorization.

222111112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847466.

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

Adding to 222111112011 its reverse (110211111222), we get a palindrome (332322223233).

The spelling of 222111112011 in words is "two hundred twenty-two billion, one hundred eleven million, one hundred twelve thousand, eleven".