12201245 has 12 divisors (see below), whose sum is σ = 17032284. Its totient is φ = 8366400.

The previous prime is 12201229. The next prime is 12201251. The reversal of 12201245 is 54210221.

It can be written as a sum of positive squares in 2 ways, for example, as 4439449 + 7761796 = 2107^2 + 2786^2 .

It is not a de Polignac number, because 12201245 - 2⁴ = 12201229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24656 + ... + 25145.

It is an arithmetic number, because the mean of its divisors is an integer number (1419357).

Almost surely, 2^12201245 is an apocalyptic number.

It is an amenable number.

12201245 is a deficient number, since it is larger than the sum of its proper divisors (4831039).

12201245 is an equidigital number, since it uses as much as digits as its factorization.

12201245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49820 (or 49813 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12201245 is about 3493.0280559996. The cubic root of 12201245 is about 230.2155823674.

Adding to 12201245 its reverse (54210221), we get a palindrome (66411466).

The spelling of 12201245 in words is "twelve million, two hundred one thousand, two hundred forty-five".