12000220121200 has 120 divisors (see below), whose sum is σ = 29046317947920. Its totient is φ = 4764173568000.

The previous prime is 12000220121191. The next prime is 12000220121213. The reversal of 12000220121200 is 212102200021.

It is a happy number.

It is a super-3 number, since 3×12000220121200³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354484275 + ... + 354518125.

It is an arithmetic number, because the mean of its divisors is an integer number (242052649566).

Almost surely, 2^{12000220121200} is an apocalyptic number.

12000220121200 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 12000220121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14523158973960).

12000220121200 is an abundant number, since it is smaller than the sum of its proper divisors (17046097826720).

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

12000220121200 is a wasteful number, since it uses less digits than its factorization.

12000220121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40475 (or 40464 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12000220121200 its reverse (212102200021), we get a palindrome (12212322321221).

The spelling of 12000220121200 in words is "twelve trillion, two hundred twenty million, one hundred twenty-one thousand, two hundred".