12000020002000 has 40 divisors (see below), whose sum is σ = 29016048369672. Its totient is φ = 4800008000000.

The previous prime is 12000020001979. The next prime is 12000020002073. The reversal of 12000020002000 is 20002000021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 210328635456 + 11789691366544 = 458616^2 + 3433612^2 .

It is a tau number, because it is divible by the number of its divisors (40).

12000020002000 is a modest number, since divided by 20002000 gives 120000 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3000003001 + ... + 3000007000.

Almost surely, 2^{12000020002000} is an apocalyptic number.

12000020002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000020002000 is an abundant number, since it is smaller than the sum of its proper divisors (17016028367672).

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

12000020002000 is an equidigital number, since it uses as much as digits as its factorization.

12000020002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000010024 (or 6000010008 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 12000020002000 its reverse (20002000021), we get a palindrome (12020022002021).

The spelling of 12000020002000 in words is "twelve trillion, twenty million, two thousand".