12312201123122 has 16 divisors (see below), whose sum is σ = 19105266412440. Its totient is φ = 5943781802112.

The previous prime is 12312201123091. The next prime is 12312201123133. The reversal of 12312201123122 is 22132110221321.

It can be written as a sum of positive squares in 4 ways, for example, as 12121475891281 + 190725231841 = 3481591^2 + 436721^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9338768 + ... + 10575300.

Almost surely, 2^{12312201123122} is an apocalyptic number.

12312201123122 is a deficient number, since it is larger than the sum of its proper divisors (6793065289318).

12312201123122 is a wasteful number, since it uses less digits than its factorization.

12312201123122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408237.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12312201123122 its reverse (22132110221321), we get a palindrome (34444311344443).

The spelling of 12312201123122 in words is "twelve trillion, three hundred twelve billion, two hundred one million, one hundred twenty-three thousand, one hundred twenty-two".