111992299111 has 12 divisors (see below), whose sum is σ = 140684542096. Its totient is φ = 87266725920.

The previous prime is 111992299087. The next prime is 111992299121.

It is a happy number.

111992299111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 111992299111 - 2²⁷ = 111858081383 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111992299121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66110310 + ... + 66112003.

Almost surely, 2^111992299111 is an apocalyptic number.

111992299111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111992299111 is a deficient number, since it is larger than the sum of its proper divisors (28692242985).

111992299111 is a wasteful number, since it uses less digits than its factorization.

111992299111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132222342 (or 132222331 counting only the distinct ones).

The product of its digits is 26244, while the sum is 46.

The spelling of 111992299111 in words is "one hundred eleven billion, nine hundred ninety-two million, two hundred ninety-nine thousand, one hundred eleven".