12111123131224 has 64 divisors (see below), whose sum is σ = 24721374363840. Its totient is φ = 5529226483200.

The previous prime is 12111123131171. The next prime is 12111123131231. The reversal of 12111123131224 is 42213132111121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1835949 + ... + 5252899.

It is an arithmetic number, because the mean of its divisors is an integer number (386271474435).

Almost surely, 2^{12111123131224} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12111123131224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12360687181920).

12111123131224 is an abundant number, since it is smaller than the sum of its proper divisors (12610251232616).

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

12111123131224 is a wasteful number, since it uses less digits than its factorization.

12111123131224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417340 (or 3417336 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

Adding to 12111123131224 its reverse (42213132111121), we get a palindrome (54324255242345).

The spelling of 12111123131224 in words is "twelve trillion, one hundred eleven billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-four".