131211222421332 has 12 divisors (see below), whose sum is σ = 306159518983136. Its totient is φ = 43737074140440.

The previous prime is 131211222421303. The next prime is 131211222421337. The reversal of 131211222421332 is 233124222112131.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a self number, because there is not a number n which added to its sum of digits gives 131211222421332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131211222421337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5467134267544 + ... + 5467134267567.

Almost surely, 2^{131211222421332} is an apocalyptic number.

131211222421332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131211222421332 is an abundant number, since it is smaller than the sum of its proper divisors (174948296561804).

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

131211222421332 is a wasteful number, since it uses less digits than its factorization.

131211222421332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10934268535118 (or 10934268535116 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

Adding to 131211222421332 its reverse (233124222112131), we get a palindrome (364335444533463).

The spelling of 131211222421332 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred twenty-two million, four hundred twenty-one thousand, three hundred thirty-two".