12431205222 has 16 divisors (see below), whose sum is σ = 26324905392. Its totient is φ = 3899985920.

The previous prime is 12431205217. The next prime is 12431205233. The reversal of 12431205222 is 22250213421.

It is a junction number, because it is equal to n+sod(n) for n = 12431205192 and 12431205201.

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, 60937179 + ... + 60937382.

It is an arithmetic number, because the mean of its divisors is an integer number (1645306587).

Almost surely, 2^12431205222 is an apocalyptic number.

12431205222 is an abundant number, since it is smaller than the sum of its proper divisors (13893700170).

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

12431205222 is a wasteful number, since it uses less digits than its factorization.

12431205222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121874583.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12431205222 its reverse (22250213421), we get a palindrome (34681418643).

The spelling of 12431205222 in words is "twelve billion, four hundred thirty-one million, two hundred five thousand, two hundred twenty-two".