12205004245 has 16 divisors (see below), whose sum is σ = 16763955840.
Its totient is φ = 8356313664.
The previous prime is 12205004239. The next prime is 12205004267. The reversal of 12205004245 is 54240050221.
Adding to 12205004245 its reverse (54240050221), we get a palindrome (66445054466).
It is a cyclic number.
It is not a de Polignac number, because 12205004245 - 25 = 12205004213 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244155 + ... + 289864.
It is an arithmetic number, because the mean of its divisors is an integer number (1047747240).
Almost surely, 212205004245 is an apocalyptic number.
It is an amenable number.
12205004245 is a deficient number, since it is larger than the sum of its proper divisors (4558951595).
12205004245 is an equidigital number, since it uses as much as digits as its factorization.
12205004245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 534684.
The product of its (nonzero) digits is 3200, while the sum is 25.
The spelling of 12205004245 in words is "twelve billion, two hundred five million, four thousand, two hundred forty-five".