222112111211 has 16 divisors (see below), whose sum is σ = 229744804320. Its totient is φ = 214639476480.

The previous prime is 222112111187. The next prime is 222112111213. The reversal of 222112111211 is 112111211222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222112111211 is a prime.

It is a super-5 number, since 5×222112111211⁵ (a number of 58 digits) contains 55555 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 222112111211.

It is not an unprimeable number, because it can be changed into a prime (222112111213) 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, 722060 + ... + 982646.

It is an arithmetic number, because the mean of its divisors is an integer number (14359050270).

Almost surely, 2^222112111211 is an apocalyptic number.

222112111211 is a deficient number, since it is larger than the sum of its proper divisors (7632693109).

222112111211 is a wasteful number, since it uses less digits than its factorization.

222112111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260894.

The product of its digits is 32, while the sum is 17.

Adding to 222112111211 its reverse (112111211222), we get a palindrome (334223322433).

It can be divided in two parts, 222 and 112111211, that multiplied together give a palindrome (24888688842).

The spelling of 222112111211 in words is "two hundred twenty-two billion, one hundred twelve million, one hundred eleven thousand, two hundred eleven".