It is a congruent number.
It is an unprimeable number.
Almost surely, 212886031231220 is an apocalyptic number.
12886031231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12886031231220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21785452609536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12886031231220 is a wasteful number, since it uses less digits than its factorization.
12886031231220 is an evil number, because the sum of its binary digits is even.
The spelling of 12886031231220 in words is "twelve trillion, eight hundred eighty-six billion, thirty-one million, two hundred thirty-one thousand, two hundred twenty".