12000121200012 has 72 divisors (see below), whose sum is σ = 30780589663936. Its totient is φ = 3635996364000.

The previous prime is 12000121199993. The next prime is 12000121200019. The reversal of 12000121200012 is 21000212100021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12000121200019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12745587 + ... + 13654677.

Almost surely, 2^{12000121200012} is an apocalyptic number.

12000121200012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12000121200012 is an abundant number, since it is smaller than the sum of its proper divisors (18780468463924).

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

12000121200012 is a wasteful number, since it uses less digits than its factorization.

12000121200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918211 (or 918198 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

12000121200012 divided by its sum of digits (12) gives a palindrome (1000010100001).

Adding to 12000121200012 its reverse (21000212100021), we get a palindrome (33000333300033).

Subtracting 12000121200012 from its reverse (21000212100021), we obtain a palindrome (9000090900009).

The spelling of 12000121200012 in words is "twelve trillion, one hundred twenty-one million, two hundred thousand, twelve".