12122111210012 has 12 divisors (see below), whose sum is σ = 21945201328680. Its totient is φ = 5852053687536.

The previous prime is 12122111210003. The next prime is 12122111210029. The reversal of 12122111210012 is 21001211122121.

It is a congruent number.

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, 52250479238 + ... + 52250479469.

It is an arithmetic number, because the mean of its divisors is an integer number (1828766777390).

Almost surely, 2^{12122111210012} is an apocalyptic number.

It is an amenable number.

12122111210012 is a deficient number, since it is larger than the sum of its proper divisors (9823090118668).

12122111210012 is a wasteful number, since it uses less digits than its factorization.

12122111210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104500958740 (or 104500958738 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12122111210012 its reverse (21001211122121), we get a palindrome (33123322332133).

The spelling of 12122111210012 in words is "twelve trillion, one hundred twenty-two billion, one hundred eleven million, two hundred ten thousand, twelve".