111121200000111 has 24 divisors (see below), whose sum is σ = 172351685475504. Its totient is φ = 63497667757440.

The previous prime is 111121200000077. The next prime is 111121200000133. The reversal of 111121200000111 is 111000002121111.

It is not a de Polignac number, because 111121200000111 - 2²⁷ = 111121065782383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121200000611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81167971 + ... + 82525643.

It is an arithmetic number, because the mean of its divisors is an integer number (7181320228146).

Almost surely, 2^{111121200000111} is an apocalyptic number.

111121200000111 is a deficient number, since it is larger than the sum of its proper divisors (61230485475393).

111121200000111 is a wasteful number, since it uses less digits than its factorization.

111121200000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914471 (or 1914464 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111121200000111 its reverse (111000002121111), we get a palindrome (222121202121222).

The spelling of 111121200000111 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred million, one hundred eleven", and thus it is an aban number.