131331000222012 has 96 divisors (see below), whose sum is σ = 326990320360704. Its totient is φ = 40881278131200.

The previous prime is 131331000221989. The next prime is 131331000222127. The reversal of 131331000222012 is 210222000133131.

It is a self number, because there is not a number n which added to its sum of digits gives 131331000222012.

It is a congruent number.

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, 180853083 + ... + 181577805.

It is an arithmetic number, because the mean of its divisors is an integer number (3406149170424).

Almost surely, 2^{131331000222012} is an apocalyptic number.

131331000222012 is a gapful number since it is divisible by the number (12) 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 131331000222012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163495160180352).

131331000222012 is an abundant number, since it is smaller than the sum of its proper divisors (195659320138692).

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

131331000222012 is a wasteful number, since it uses less digits than its factorization.

131331000222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731659 (or 731657 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131331000222012 its reverse (210222000133131), we get a palindrome (341553000355143).

The spelling of 131331000222012 in words is "one hundred thirty-one trillion, three hundred thirty-one billion, two hundred twenty-two thousand, twelve".