12120222120000 has 560 divisors, whose sum is σ = 40773093683520. Its totient is φ = 3175870464000.

The previous prime is 12120222119989. The next prime is 12120222120047. The reversal of 12120222120000 is 2122202121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2479077556 + ... + 2479082444.

Almost surely, 2^{12120222120000} is an apocalyptic number.

12120222120000 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 12120222120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20386546841760).

12120222120000 is an abundant number, since it is smaller than the sum of its proper divisors (28652871563520).

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

12120222120000 is an equidigital number, since it uses as much as digits as its factorization.

12120222120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280 (or 5255 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12120222120000 its reverse (2122202121), we get a palindrome (12122344322121).

The spelling of 12120222120000 in words is "twelve trillion, one hundred twenty billion, two hundred twenty-two million, one hundred twenty thousand".