12020020100000 has 288 divisors, whose sum is σ = 32587373274624. Its totient is φ = 4327600000000.

The previous prime is 12020020099961. The next prime is 12020020100003. The reversal of 12020020100000 is 102002021.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (12020020100003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111045905 + ... + 111154095.

It is an arithmetic number, because the mean of its divisors is an integer number (113150601648).

Almost surely, 2^{12020020100000} is an apocalyptic number.

12020020100000 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 12020020100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16293686637312).

12020020100000 is an abundant number, since it is smaller than the sum of its proper divisors (20567353174624).

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

12020020100000 is a wasteful number, since it uses less digits than its factorization.

12020020100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108338 (or 108310 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 12020020100000 its reverse (102002021), we get a palindrome (12020122102021).

The spelling of 12020020100000 in words is "twelve trillion, twenty billion, twenty million, one hundred thousand".