111212120222 has 16 divisors (see below), whose sum is σ = 192150528000. Its totient is φ = 47287042488.

The previous prime is 111212120209. The next prime is 111212120231. The reversal of 111212120222 is 222021212111.

It is a self number, because there is not a number n which added to its sum of digits gives 111212120222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31272722 + ... + 31276277.

It is an arithmetic number, because the mean of its divisors is an integer number (12009408000).

Almost surely, 2^111212120222 is an apocalyptic number.

111212120222 is a deficient number, since it is larger than the sum of its proper divisors (80938407778).

111212120222 is a wasteful number, since it uses less digits than its factorization.

111212120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62549135.

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

Adding to 111212120222 its reverse (222021212111), we get a palindrome (333233332333).

The spelling of 111212120222 in words is "one hundred eleven billion, two hundred twelve million, one hundred twenty thousand, two hundred twenty-two".