131224432112122 has 4 divisors (see below), whose sum is σ = 196836648168186. Its totient is φ = 65612216056060.

The previous prime is 131224432112119. The next prime is 131224432112141. The reversal of 131224432112122 is 221211234422131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 125879222207281 + 5345209904841 = 11219591^2 + 2311971^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32806108028029 + ... + 32806108028032.

Almost surely, 2^{131224432112122} is an apocalyptic number.

131224432112122 is a deficient number, since it is larger than the sum of its proper divisors (65612216056064).

131224432112122 is an equidigital number, since it uses as much as digits as its factorization.

131224432112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65612216056063.

The product of its digits is 9216, while the sum is 31.

Adding to 131224432112122 its reverse (221211234422131), we get a palindrome (352435666534253).

The spelling of 131224432112122 in words is "one hundred thirty-one trillion, two hundred twenty-four billion, four hundred thirty-two million, one hundred twelve thousand, one hundred twenty-two".