111012120211111 has 8 divisors (see below), whose sum is σ = 126871783994880. Its totient is φ = 95152653794328.

The previous prime is 111012120211079. The next prime is 111012120211123. The reversal of 111012120211111 is 111112021210111.

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 111012120211111 - 2⁵ = 111012120211079 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 (111012120211411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48134491 + ... + 50388028.

It is an arithmetic number, because the mean of its divisors is an integer number (15858972999360).

Almost surely, 2^{111012120211111} is an apocalyptic number.

111012120211111 is a deficient number, since it is larger than the sum of its proper divisors (15859663783769).

111012120211111 is an equidigital number, since it uses as much as digits as its factorization.

111012120211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98683493.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 111012120211111 its reverse (111112021210111), we get a palindrome (222124141421222).

The spelling of 111012120211111 in words is "one hundred eleven trillion, twelve billion, one hundred twenty million, two hundred eleven thousand, one hundred eleven".