12101122222012 has 12 divisors (see below), whose sum is σ = 21182944417096. Its totient is φ = 6048852388560.

The previous prime is 12101122221977. The next prime is 12101122222019. The reversal of 12101122222012 is 21022222110121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101122222019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427164678 + ... + 427193005.

Almost surely, 2^{12101122222012} is an apocalyptic number.

It is an amenable number.

12101122222012 is a deficient number, since it is larger than the sum of its proper divisors (9081822195084).

12101122222012 is a wasteful number, since it uses less digits than its factorization.

12101122222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854361228 (or 854361226 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12101122222012 its reverse (21022222110121), we get a palindrome (33123344332133).

The spelling of 12101122222012 in words is "twelve trillion, one hundred one billion, one hundred twenty-two million, two hundred twenty-two thousand, twelve".