12205076 has 12 divisors (see below), whose sum is σ = 23001972. Its totient is φ = 5633088.

The previous prime is 12205073. The next prime is 12205097. The reversal of 12205076 is 67050221.

It can be written as a sum of positive squares in 2 ways, for example, as 2755600 + 9449476 = 1660^2 + 3074^2 .

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117305 + ... + 117408.

It is an arithmetic number, because the mean of its divisors is an integer number (1916831).

Almost surely, 2^12205076 is an apocalyptic number.

It is an amenable number.

12205076 is a deficient number, since it is larger than the sum of its proper divisors (10796896).

12205076 is a wasteful number, since it uses less digits than its factorization.

12205076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234730 (or 234728 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 12205076 is about 3493.5763910354. The cubic root of 12205076 is about 230.2396745429.

Adding to 12205076 its reverse (67050221), we get a palindrome (79255297).

The spelling of 12205076 in words is "twelve million, two hundred five thousand, seventy-six".