12210445225 has 24 divisors (see below), whose sum is σ = 16535379168. Its totient is φ = 8870659200.

The previous prime is 12210445223. The next prime is 12210445237. The reversal of 12210445225 is 52254401221.

It is a happy number.

It is not a de Polignac number, because 12210445225 - 2¹ = 12210445223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12210445193 and 12210445202.

It is not an unprimeable number, because it can be changed into a prime (12210445223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233982 + ... + 281368.

It is an arithmetic number, because the mean of its divisors is an integer number (688974132).

Almost surely, 2^12210445225 is an apocalyptic number.

It is an amenable number.

12210445225 is a deficient number, since it is larger than the sum of its proper divisors (4324933943).

12210445225 is a wasteful number, since it uses less digits than its factorization.

12210445225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48345 (or 48340 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 12210445225 its reverse (52254401221), we get a palindrome (64464846446).

The spelling of 12210445225 in words is "twelve billion, two hundred ten million, four hundred forty-five thousand, two hundred twenty-five".