12201120122012 has 24 divisors (see below), whose sum is σ = 22475884905600. Its totient is φ = 5779442643696.

The previous prime is 12201120121979. The next prime is 12201120122017. The reversal of 12201120122012 is 21022102110221.

It is a super-2 number, since 2×12201120122012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201120122017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15394289 + ... + 16167447.

It is an arithmetic number, because the mean of its divisors is an integer number (936495204400).

Almost surely, 2^{12201120122012} is an apocalyptic number.

It is an amenable number.

12201120122012 is a deficient number, since it is larger than the sum of its proper divisors (10274764783588).

12201120122012 is a wasteful number, since it uses less digits than its factorization.

12201120122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980825 (or 980823 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12201120122012 its reverse (21022102110221), we get a palindrome (33223222232233).

The spelling of 12201120122012 in words is "twelve trillion, two hundred one billion, one hundred twenty million, one hundred twenty-two thousand, twelve".