12123222025 has 12 divisors (see below), whose sum is σ = 15062345100. Its totient is φ = 9679513280.

The previous prime is 12123222017. The next prime is 12123222029. The reversal of 12123222025 is 52022232121.

It can be written as a sum of positive squares in 6 ways, for example, as 30261001 + 12092961024 = 5501^2 + 109968^2 .

It is not a de Polignac number, because 12123222025 - 2³ = 12123222017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12123221987 and 12123222005.

It is not an unprimeable number, because it can be changed into a prime (12123222029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463630 + ... + 489079.

It is an arithmetic number, because the mean of its divisors is an integer number (1255195425).

Almost surely, 2^12123222025 is an apocalyptic number.

It is an amenable number.

12123222025 is a deficient number, since it is larger than the sum of its proper divisors (2939123075).

12123222025 is an equidigital number, since it uses as much as digits as its factorization.

12123222025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953228 (or 953223 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 12123222025 its reverse (52022232121), we get a palindrome (64145454146).

The spelling of 12123222025 in words is "twelve billion, one hundred twenty-three million, two hundred twenty-two thousand, twenty-five".