12021020120000 has 70 divisors (see below), whose sum is σ = 29808223165248. Its totient is φ = 4808408032000.

The previous prime is 12021020119993. The next prime is 12021020120009. The reversal of 12021020120000 is 2102012021.

It is a happy number.

12021020120000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021020120009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 150222752 + ... + 150302751.

Almost surely, 2^{12021020120000} is an apocalyptic number.

12021020120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021020120000 is an abundant number, since it is smaller than the sum of its proper divisors (17787203045248).

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

12021020120000 is an frugal number, since it uses more digits than its factorization.

12021020120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300525535 (or 300525510 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12021020120000 its reverse (2102012021), we get a palindrome (12023122132021).

The spelling of 12021020120000 in words is "twelve trillion, twenty-one billion, twenty million, one hundred twenty thousand".