12012112125321 has 32 divisors (see below), whose sum is σ = 20165891245056. Its totient is φ = 6178275480000.

The previous prime is 12012112125319. The next prime is 12012112125353. The reversal of 12012112125321 is 12352121121021.

It is not a de Polignac number, because 12012112125321 - 2¹ = 12012112125319 is a prime.

It is a super-3 number, since 3×12012112125321³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 12012112125291 and 12012112125300.

It is not an unprimeable number, because it can be changed into a prime (12012112125121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257404815 + ... + 257451476.

It is an arithmetic number, because the mean of its divisors is an integer number (630184101408).

Almost surely, 2^{12012112125321} is an apocalyptic number.

12012112125321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12012112125321 is a deficient number, since it is larger than the sum of its proper divisors (8153779119735).

12012112125321 is a wasteful number, since it uses less digits than its factorization.

12012112125321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514856413.

The product of its (nonzero) digits is 480, while the sum is 24.

Adding to 12012112125321 its reverse (12352121121021), we get a palindrome (24364233246342).

The spelling of 12012112125321 in words is "twelve trillion, twelve billion, one hundred twelve million, one hundred twenty-five thousand, three hundred twenty-one".