12321031131222 has 16 divisors (see below), whose sum is σ = 26882249740992. Its totient is φ = 3733645797320.

The previous prime is 12321031131221. The next prime is 12321031131263. The reversal of 12321031131222 is 22213113012321.

12321031131222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12321031131192 and 12321031131201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321031131221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93341144868 + ... + 93341144999.

It is an arithmetic number, because the mean of its divisors is an integer number (1680140608812).

Almost surely, 2^{12321031131222} is an apocalyptic number.

12321031131222 is an abundant number, since it is smaller than the sum of its proper divisors (14561218609770).

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

12321031131222 is a wasteful number, since it uses less digits than its factorization.

12321031131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186682289883.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12321031131222 its reverse (22213113012321), we get a palindrome (34534144143543).

The spelling of 12321031131222 in words is "twelve trillion, three hundred twenty-one billion, thirty-one million, one hundred thirty-one thousand, two hundred twenty-two".