12122122011212 has 12 divisors (see below), whose sum is σ = 21423750287856. Its totient is φ = 6001050500400.

The previous prime is 12122122011133. The next prime is 12122122011283. The reversal of 12122122011212 is 21211022122121.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15002625848 + ... + 15002626655.

It is an arithmetic number, because the mean of its divisors is an integer number (1785312523988).

Almost surely, 2^{12122122011212} is an apocalyptic number.

It is an amenable number.

12122122011212 is a deficient number, since it is larger than the sum of its proper divisors (9301628276644).

12122122011212 is a wasteful number, since it uses less digits than its factorization.

12122122011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30005252608 (or 30005252606 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12122122011212 its reverse (21211022122121), we get a palindrome (33333144133333).

The spelling of 12122122011212 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty-two million, eleven thousand, two hundred twelve".