222212222111 has 16 divisors (see below), whose sum is σ = 259214279328. Its totient is φ = 188245632000.

The previous prime is 222212222101. The next prime is 222212222159. The reversal of 222212222111 is 111222212222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222212222111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212222101) 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, 5863790 + ... + 5901563.

It is an arithmetic number, because the mean of its divisors is an integer number (16200892458).

Almost surely, 2^222212222111 is an apocalyptic number.

222212222111 is a deficient number, since it is larger than the sum of its proper divisors (37002057217).

222212222111 is a wasteful number, since it uses less digits than its factorization.

222212222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11765482.

The product of its digits is 256, while the sum is 20.

Adding to 222212222111 its reverse (111222212222), we get a palindrome (333434434333).

It can be divided in two parts, 222212222 and 111, that multiplied together give a palindrome (24665556642).

The spelling of 222212222111 in words is "two hundred twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred eleven".