12111224000 has 112 divisors (see below), whose sum is σ = 30084125760. Its totient is φ = 4829849600.

The previous prime is 12111223991. The next prime is 12111224029. The reversal of 12111224000 is 42211121.

It is a happy 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, 2869892 + ... + 2874108.

Almost surely, 2^12111224000 is an apocalyptic number.

12111224000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12111224000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15042062880).

12111224000 is an abundant number, since it is smaller than the sum of its proper divisors (17972901760).

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

12111224000 is an equidigital number, since it uses as much as digits as its factorization.

12111224000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603 (or 4583 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12111224000 its reverse (42211121), we get a palindrome (12153435121).

The spelling of 12111224000 in words is "twelve billion, one hundred eleven million, two hundred twenty-four thousand".