111211022222 has 16 divisors (see below), whose sum is σ = 172011787920. Its totient is φ = 53899040832.

The previous prime is 111211022207. The next prime is 111211022227. The reversal of 111211022222 is 222220112111.

It is a self number, because there is not a number n which added to its sum of digits gives 111211022222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111211022227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6311447 + ... + 6329042.

It is an arithmetic number, because the mean of its divisors is an integer number (10750736745).

Almost surely, 2^111211022222 is an apocalyptic number.

111211022222 is a deficient number, since it is larger than the sum of its proper divisors (60800765698).

111211022222 is a wasteful number, since it uses less digits than its factorization.

111211022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12640627.

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

Adding to 111211022222 its reverse (222220112111), we get a palindrome (333431134333).

The spelling of 111211022222 in words is "one hundred eleven billion, two hundred eleven million, twenty-two thousand, two hundred twenty-two".