222111222011 has 8 divisors (see below), whose sum is σ = 254101221600. Its totient is φ = 190186178688.

The previous prime is 222111221929. The next prime is 222111222013. The reversal of 222111222011 is 110222111222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222111222011 - 2²² = 222107027707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222111222013) 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 7 ways as a sum of consecutive naturals, for example, 16231736 + ... + 16245413.

It is an arithmetic number, because the mean of its divisors is an integer number (31762652700).

Almost surely, 2^222111222011 is an apocalyptic number.

222111222011 is a deficient number, since it is larger than the sum of its proper divisors (31989999589).

222111222011 is an equidigital number, since it uses as much as digits as its factorization.

222111222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32478133.

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

Adding to 222111222011 its reverse (110222111222), we get a palindrome (332333333233).

The spelling of 222111222011 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, eleven".