331221231132 has 48 divisors (see below), whose sum is σ = 845655855744. Its totient is φ = 100066824000.

The previous prime is 331221231113. The next prime is 331221231191. The reversal of 331221231132 is 231132122133.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3746719 + ... + 3834102.

It is an arithmetic number, because the mean of its divisors is an integer number (17617830328).

Almost surely, 2^331221231132 is an apocalyptic number.

It is an amenable number.

331221231132 is an abundant number, since it is smaller than the sum of its proper divisors (514434624612).

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

331221231132 is a wasteful number, since it uses less digits than its factorization.

331221231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7581170 (or 7581168 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 331221231132 its reverse (231132122133), we get a palindrome (562353353265).

The spelling of 331221231132 in words is "three hundred thirty-one billion, two hundred twenty-one million, two hundred thirty-one thousand, one hundred thirty-two".