12231314521712 has 160 divisors (see below), whose sum is σ = 28639646945280. Its totient is φ = 4985890560000.

The previous prime is 12231314521609. The next prime is 12231314521717. The reversal of 12231314521712 is 21712541313221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231314521717) 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, 22147337 + ... + 22692887.

It is an arithmetic number, because the mean of its divisors is an integer number (178997793408).

Almost surely, 2^{12231314521712} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12231314521712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14319823472640).

12231314521712 is an abundant number, since it is smaller than the sum of its proper divisors (16408332423568).

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

12231314521712 is a wasteful number, since it uses less digits than its factorization.

12231314521712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545863 (or 545857 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

Adding to 12231314521712 its reverse (21712541313221), we get a palindrome (33943855834933).

The spelling of 12231314521712 in words is "twelve trillion, two hundred thirty-one billion, three hundred fourteen million, five hundred twenty-one thousand, seven hundred twelve".