12122203312205 has 32 divisors (see below), whose sum is σ = 17119710668544. Its totient is φ = 8067343205376.

The previous prime is 12122203312201. The next prime is 12122203312231. The reversal of 12122203312205 is 50221330222121.

It is a happy number.

12122203312205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12122203312205 - 2² = 12122203312201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122203312201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25415372 + ... + 25887941.

It is an arithmetic number, because the mean of its divisors is an integer number (534990958392).

Almost surely, 2^{12122203312205} is an apocalyptic number.

It is an amenable number.

12122203312205 is a deficient number, since it is larger than the sum of its proper divisors (4997507356339).

12122203312205 is a wasteful number, since it uses less digits than its factorization.

12122203312205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51303525.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 12122203312205 its reverse (50221330222121), we get a palindrome (62343533534326).

The spelling of 12122203312205 in words is "twelve trillion, one hundred twenty-two billion, two hundred three million, three hundred twelve thousand, two hundred five".