21412423111200 has 144 divisors (see below), whose sum is σ = 76033567977696. Its totient is φ = 5190890444800.

The previous prime is 21412423111193. The next prime is 21412423111231. The reversal of 21412423111200 is 211132421412.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 405511917 + ... + 405564716.

It is an arithmetic number, because the mean of its divisors is an integer number (528010888734).

Almost surely, 2^{21412423111200} is an apocalyptic number.

21412423111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21412423111200 is an abundant number, since it is smaller than the sum of its proper divisors (54621144866496).

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

21412423111200 is a wasteful number, since it uses less digits than its factorization.

21412423111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811076667 (or 811076654 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 21412423111200 its reverse (211132421412), we get a palindrome (21623555532612).

The spelling of 21412423111200 in words is "twenty-one trillion, four hundred twelve billion, four hundred twenty-three million, one hundred eleven thousand, two hundred".