12204775 has 12 divisors (see below), whose sum is σ = 16510104. Its totient is φ = 8876000.

The previous prime is 12204769. The next prime is 12204781. The reversal of 12204775 is 57740221.

It is an interprime number because it is at equal distance from previous prime (12204769) and next prime (12204781).

It is not a de Polignac number, because 12204775 - 2³ = 12204767 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21916 + ... + 22465.

It is an arithmetic number, because the mean of its divisors is an integer number (1375842).

Almost surely, 2^12204775 is an apocalyptic number.

12204775 is a deficient number, since it is larger than the sum of its proper divisors (4305329).

12204775 is a wasteful number, since it uses less digits than its factorization.

12204775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44402 (or 44397 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 12204775 is about 3493.5333117061. The cubic root of 12204775 is about 230.2377818136.

Adding to 12204775 its reverse (57740221), we get a palindrome (69944996).

It can be divided in two parts, 1220 and 4775, that added together give a palindrome (5995).

The spelling of 12204775 in words is "twelve million, two hundred four thousand, seven hundred seventy-five".