12020000000000 has 264 divisors, whose sum is σ = 30092650750890. Its totient is φ = 4800000000000.

The previous prime is 12019999999991. The next prime is 12020000000039. The reversal of 12020000000000 is 2021.

It can be written as a sum of positive squares in 11 ways, for example, as 4470958007296 + 7549041992704 = 2114464^2 + 2747552^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is an unprimeable number.

It is a polite number, since it can be written in 21 ways as a sum of consecutive naturals, for example, 19999999700 + ... + 20000000300.

Almost surely, 2^{12020000000000} is an apocalyptic number.

12020000000000 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 12020000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15046325375445).

12020000000000 is an abundant number, since it is smaller than the sum of its proper divisors (18072650750890).

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

12020000000000 is an frugal number, since it uses more digits than its factorization.

12020000000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

Adding to 12020000000000 its reverse (2021), we get a palindrome (12020000002021).

The spelling of 12020000000000 in words is "twelve trillion, twenty billion", and thus it is an aban number and an uban number.