12201275 has 6 divisors (see below), whose sum is σ = 15129612. Its totient is φ = 9761000.

The previous prime is 12201269. The next prime is 12201283. The reversal of 12201275 is 57210221.

It is a de Polignac number, because none of the positive numbers 2^k-12201275 is a prime.

It is a super-2 number, since 2×12201275² = 297742223251250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244001 + ... + 244050.

It is an arithmetic number, because the mean of its divisors is an integer number (2521602).

Almost surely, 2^12201275 is an apocalyptic number.

12201275 is a deficient number, since it is larger than the sum of its proper divisors (2928337).

12201275 is an equidigital number, since it uses as much as digits as its factorization.

12201275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488061 (or 488056 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 12201275 is about 3493.0323502653. The cubic root of 12201275 is about 230.2157710493.

Adding to 12201275 its reverse (57210221), we get a palindrome (69411496).

The spelling of 12201275 in words is "twelve million, two hundred one thousand, two hundred seventy-five".