111222112020111 has 12 divisors (see below), whose sum is σ = 160873335297688. Its totient is φ = 74046917684304.

The previous prime is 111222112020109. The next prime is 111222112020133. The reversal of 111222112020111 is 111020211222111.

It is a happy number.

111222112020111 is a `hidden beast` number, since 1 + 112 + 221 + 120 + 201 + 11 = 666.

It is not a de Polignac number, because 111222112020111 - 2¹ = 111222112020109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222112022111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8429742685 + ... + 8429755878.

Almost surely, 2^{111222112020111} is an apocalyptic number.

111222112020111 is a deficient number, since it is larger than the sum of its proper divisors (49651223277577).

111222112020111 is a wasteful number, since it uses less digits than its factorization.

111222112020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16859499302 (or 16859499299 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111222112020111 its reverse (111020211222111), we get a palindrome (222242323242222).

The spelling of 111222112020111 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred twelve million, twenty thousand, one hundred eleven".