111222102012211 has 16 divisors (see below), whose sum is σ = 111850100328960. Its totient is φ = 110594590686720.

The previous prime is 111222102012209. The next prime is 111222102012221. The reversal of 111222102012211 is 112210201222111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111222102012211 - 2¹ = 111222102012209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111222102012221) 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, 6299028495 + ... + 6299046151.

It is an arithmetic number, because the mean of its divisors is an integer number (6990631270560).

Almost surely, 2^{111222102012211} is an apocalyptic number.

111222102012211 is a deficient number, since it is larger than the sum of its proper divisors (627998316749).

111222102012211 is a wasteful number, since it uses less digits than its factorization.

111222102012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29454.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111222102012211 its reverse (112210201222111), we get a palindrome (223432303234322).

The spelling of 111222102012211 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred two million, twelve thousand, two hundred eleven".