12002011233220 has 24 divisors (see below), whose sum is σ = 25204289304600. Its totient is φ = 4800791976192.

The previous prime is 12002011233181. The next prime is 12002011233227. The reversal of 12002011233220 is 2233211020021.

It can be written as a sum of positive squares in 4 ways, for example, as 2479516323904 + 9522494909316 = 1574648^2 + 3085854^2 .

It is not an unprimeable number, because it can be changed into a prime (12002011233227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13016826 + ... + 13908334.

It is an arithmetic number, because the mean of its divisors is an integer number (1050178721025).

Almost surely, 2^{12002011233220} is an apocalyptic number.

12002011233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002011233220 is an abundant number, since it is smaller than the sum of its proper divisors (13202278071380).

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

12002011233220 is a wasteful number, since it uses less digits than its factorization.

12002011233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564647 (or 1564645 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12002011233220 its reverse (2233211020021), we get a palindrome (14235222253241).

The spelling of 12002011233220 in words is "twelve trillion, two billion, eleven million, two hundred thirty-three thousand, two hundred twenty".