12111122000111 has 16 divisors (see below), whose sum is σ = 13036271917248. Its totient is φ = 11211103680000.

The previous prime is 12111122000099. The next prime is 12111122000113. The reversal of 12111122000111 is 11100022111121.

It is a cyclic number.

It is not a de Polignac number, because 12111122000111 - 2²² = 12111117805807 is a prime.

It is a super-2 number, since 2×12111122000111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111122000113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23097200 + ... + 23615733.

It is an arithmetic number, because the mean of its divisors is an integer number (814766994828).

Almost surely, 2^{12111122000111} is an apocalyptic number.

12111122000111 is a deficient number, since it is larger than the sum of its proper divisors (925149917137).

12111122000111 is a wasteful number, since it uses less digits than its factorization.

12111122000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46713202.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12111122000111 its reverse (11100022111121), we get a palindrome (23211144111232).

The spelling of 12111122000111 in words is "twelve trillion, one hundred eleven billion, one hundred twenty-two million, one hundred eleven", and thus it is an aban number.