111122012012111 has 8 divisors (see below), whose sum is σ = 114969057687120. Its totient is φ = 107275983147648.

The previous prime is 111122012012051. The next prime is 111122012012183. The reversal of 111122012012111 is 111210210221111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111122012012111 - 2⁶ = 111122012012047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111122012012111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122012012911) 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 7 ways as a sum of consecutive naturals, for example, 253980281 + ... + 254417426.

It is an arithmetic number, because the mean of its divisors is an integer number (14371132210890).

Almost surely, 2^{111122012012111} is an apocalyptic number.

111122012012111 is a deficient number, since it is larger than the sum of its proper divisors (3847045675009).

111122012012111 is an equidigital number, since it uses as much as digits as its factorization.

111122012012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508405273.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111122012012111 its reverse (111210210221111), we get a palindrome (222332222233222).

The spelling of 111122012012111 in words is "one hundred eleven trillion, one hundred twenty-two billion, twelve million, twelve thousand, one hundred eleven".