12002120120020 has 12 divisors (see below), whose sum is σ = 25204452252084. Its totient is φ = 4800848048000.

The previous prime is 12002120119987. The next prime is 12002120120021. The reversal of 12002120120020 is 2002102120021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1209357685264 + 10792762434756 = 1099708^2 + 3285234^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002120120021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300053002981 + ... + 300053003020.

It is an arithmetic number, because the mean of its divisors is an integer number (2100371021007).

Almost surely, 2^{12002120120020} is an apocalyptic number.

12002120120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002120120020 is an abundant number, since it is smaller than the sum of its proper divisors (13202332132064).

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

12002120120020 is a wasteful number, since it uses less digits than its factorization.

12002120120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600106006010 (or 600106006008 counting only the distinct ones).

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

Adding to 12002120120020 its reverse (2002102120021), we get a palindrome (14004222240041).

The spelling of 12002120120020 in words is "twelve trillion, two billion, one hundred twenty million, one hundred twenty thousand, twenty".