131122221232 has 20 divisors (see below), whose sum is σ = 262244443456. Its totient is φ = 63446235840.

The previous prime is 131122221221. The next prime is 131122221239. The reversal of 131122221232 is 232122221131.

131122221232 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (131122221239) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 132179163 + ... + 132180154.

Almost surely, 2^131122221232 is an apocalyptic number.

It is an amenable number.

131122221232 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131122221232 is a wasteful number, since it uses less digits than its factorization.

131122221232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264359356 (or 264359350 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 131122221232 its reverse (232122221131), we get a palindrome (363244442363).

The spelling of 131122221232 in words is "one hundred thirty-one billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred thirty-two".