12212212011212 has 12 divisors (see below), whose sum is σ = 21534511257336. Its totient is φ = 6059494509120.

The previous prime is 12212212011169. The next prime is 12212212011253. The reversal of 12212212011212 is 21211021221221.

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, 11652873533 + ... + 11652874580.

It is an arithmetic number, because the mean of its divisors is an integer number (1794542604778).

Almost surely, 2^{12212212011212} is an apocalyptic number.

It is an amenable number.

12212212011212 is a deficient number, since it is larger than the sum of its proper divisors (9322299246124).

12212212011212 is a wasteful number, since it uses less digits than its factorization.

12212212011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23305748248 (or 23305748246 counting only the distinct ones).

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

Adding to 12212212011212 its reverse (21211021221221), we get a palindrome (33423233232433).

The spelling of 12212212011212 in words is "twelve trillion, two hundred twelve billion, two hundred twelve million, eleven thousand, two hundred twelve".