131132221233212 has 24 divisors (see below), whose sum is σ = 230901621239520. Its totient is φ = 65160486233600.

The previous prime is 131132221233199. The next prime is 131132221233229. The reversal of 131132221233212 is 212332122231131.

It is a super-2 number, since 2×131132221233212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16249289 + ... + 22941312.

It is an arithmetic number, because the mean of its divisors is an integer number (9620900884980).

Almost surely, 2^{131132221233212} is an apocalyptic number.

It is an amenable number.

131132221233212 is a deficient number, since it is larger than the sum of its proper divisors (99769400006308).

131132221233212 is a wasteful number, since it uses less digits than its factorization.

131132221233212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39195781 (or 39195779 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

Adding to 131132221233212 its reverse (212332122231131), we get a palindrome (343464343464343).

The spelling of 131132221233212 in words is "one hundred thirty-one trillion, one hundred thirty-two billion, two hundred twenty-one million, two hundred thirty-three thousand, two hundred twelve".