12122011131312 has 40 divisors (see below), whose sum is σ = 31383124320240. Its totient is φ = 4031905358080.

The previous prime is 12122011131271. The next prime is 12122011131317. The reversal of 12122011131312 is 21313111022121.

It is not an unprimeable number, because it can be changed into a prime (12122011131317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273884487 + ... + 273928742.

It is an arithmetic number, because the mean of its divisors is an integer number (784578108006).

Almost surely, 2^{12122011131312} is an apocalyptic number.

12122011131312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122011131312 is an abundant number, since it is smaller than the sum of its proper divisors (19261113188928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12122011131312 is a wasteful number, since it uses less digits than its factorization.

12122011131312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547813701 (or 547813695 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12122011131312 its reverse (21313111022121), we get a palindrome (33435122153433).

The spelling of 12122011131312 in words is "twelve trillion, one hundred twenty-two billion, eleven million, one hundred thirty-one thousand, three hundred twelve".