12021103223200 has 144 divisors (see below), whose sum is σ = 30381771379680. Its totient is φ = 4639069137920.

The previous prime is 12021103223197. The next prime is 12021103223201. The reversal of 12021103223200 is 232230112021.

It is not an unprimeable number, because it can be changed into a prime (12021103223201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30124179 + ... + 30520621.

It is an arithmetic number, because the mean of its divisors is an integer number (210984523470).

Almost surely, 2^{12021103223200} is an apocalyptic number.

12021103223200 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 12021103223200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15190885689840).

12021103223200 is an abundant number, since it is smaller than the sum of its proper divisors (18360668156480).

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

12021103223200 is a wasteful number, since it uses less digits than its factorization.

12021103223200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397799 (or 397786 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12021103223200 its reverse (232230112021), we get a palindrome (12253333335221).

The spelling of 12021103223200 in words is "twelve trillion, twenty-one billion, one hundred three million, two hundred twenty-three thousand, two hundred".