331206224412 has 96 divisors (see below), whose sum is σ = 931288135680. Its totient is φ = 89496826560.

The previous prime is 331206224311. The next prime is 331206224413. The reversal of 331206224412 is 214422602133.

It is a self number, because there is not a number n which added to its sum of digits gives 331206224412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331206224413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 760087 + ... + 1113617.

It is an arithmetic number, because the mean of its divisors is an integer number (9700918080).

Almost surely, 2^331206224412 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 331206224412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465644067840).

331206224412 is an abundant number, since it is smaller than the sum of its proper divisors (600081911268).

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

331206224412 is a wasteful number, since it uses less digits than its factorization.

331206224412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354151 (or 354149 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 331206224412 its reverse (214422602133), we get a palindrome (545628826545).

The spelling of 331206224412 in words is "three hundred thirty-one billion, two hundred six million, two hundred twenty-four thousand, four hundred twelve".