12232221324131 has 4 divisors (see below), whose sum is σ = 12492481352352. Its totient is φ = 11971961295912.

The previous prime is 12232221324049. The next prime is 12232221324139. The reversal of 12232221324131 is 13142312223221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12232221324131 is a prime.

It is a super-2 number, since 2×12232221324131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12232221324094 and 12232221324103.

It is not an unprimeable number, because it can be changed into a prime (12232221324139) 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, 130130014040 + ... + 130130014133.

It is an arithmetic number, because the mean of its divisors is an integer number (3123120338088).

Almost surely, 2^{12232221324131} is an apocalyptic number.

12232221324131 is a deficient number, since it is larger than the sum of its proper divisors (260260028221).

12232221324131 is an equidigital number, since it uses as much as digits as its factorization.

12232221324131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260260028220.

The product of its digits is 6912, while the sum is 29.

Adding to 12232221324131 its reverse (13142312223221), we get a palindrome (25374533547352).

The spelling of 12232221324131 in words is "twelve trillion, two hundred thirty-two billion, two hundred twenty-one million, three hundred twenty-four thousand, one hundred thirty-one".