12000111112122 has 24 divisors (see below), whose sum is σ = 27918625853376. Its totient is φ = 3428603174808.

The previous prime is 12000111112117. The next prime is 12000111112151. The reversal of 12000111112122 is 22121111100021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20408351938 + ... + 20408352525.

It is an arithmetic number, because the mean of its divisors is an integer number (1163276077224).

Almost surely, 2^{12000111112122} is an apocalyptic number.

12000111112122 is an abundant number, since it is smaller than the sum of its proper divisors (15918514741254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12000111112122 is a wasteful number, since it uses less digits than its factorization.

12000111112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40816704482 (or 40816704475 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12000111112122 its reverse (22121111100021), we get a palindrome (34121222212143).

The spelling of 12000111112122 in words is "twelve trillion, one hundred eleven million, one hundred twelve thousand, one hundred twenty-two".