12512202025 has 6 divisors (see below), whose sum is σ = 15515130542. Its totient is φ = 10009761600.

The previous prime is 12512202023. The next prime is 12512202037. The reversal of 12512202025 is 52020221521.

It can be written as a sum of positive squares in 3 ways, for example, as 433972224 + 12078229801 = 20832^2 + 109901^2 .

It is not a de Polignac number, because 12512202025 - 2¹ = 12512202023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12512201987 and 12512202005.

It is not an unprimeable number, because it can be changed into a prime (12512202023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250244016 + ... + 250244065.

Almost surely, 2^12512202025 is an apocalyptic number.

It is an amenable number.

12512202025 is a deficient number, since it is larger than the sum of its proper divisors (3002928517).

12512202025 is an equidigital number, since it uses as much as digits as its factorization.

12512202025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500488091 (or 500488086 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 12512202025 its reverse (52020221521), we get a palindrome (64532423546).

The spelling of 12512202025 in words is "twelve billion, five hundred twelve million, two hundred two thousand, twenty-five".