12012554210412 has 96 divisors (see below), whose sum is σ = 33175817256960. Its totient is φ = 3311821880640.

The previous prime is 12012554210369. The next prime is 12012554210431. The reversal of 12012554210412 is 21401245521021.

It is a self number, because there is not a number n which added to its sum of digits gives 12012554210412.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21147112 + ... + 21707727.

It is an arithmetic number, because the mean of its divisors is an integer number (345581429760).

Almost surely, 2^{12012554210412} is an apocalyptic number.

12012554210412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012554210412 is an abundant number, since it is smaller than the sum of its proper divisors (21163263046548).

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

12012554210412 is a wasteful number, since it uses less digits than its factorization.

12012554210412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42854971 (or 42854969 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 12012554210412 its reverse (21401245521021), we get a palindrome (33413799731433).

The spelling of 12012554210412 in words is "twelve trillion, twelve billion, five hundred fifty-four million, two hundred ten thousand, four hundred twelve".