12211121120012 has 12 divisors (see below), whose sum is σ = 21477936387600. Its totient is φ = 6074567866416.

The previous prime is 12211121119961. The next prime is 12211121120057. The reversal of 12211121120012 is 21002112111221.

It is a super-2 number, since 2×12211121120012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7748172512 + ... + 7748174087.

It is an arithmetic number, because the mean of its divisors is an integer number (1789828032300).

Almost surely, 2^{12211121120012} is an apocalyptic number.

It is an amenable number.

12211121120012 is a deficient number, since it is larger than the sum of its proper divisors (9266815267588).

12211121120012 is a wasteful number, since it uses less digits than its factorization.

12211121120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15496346800 (or 15496346798 counting only the distinct ones).

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

Adding to 12211121120012 its reverse (21002112111221), we get a palindrome (33213233231233).

The spelling of 12211121120012 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-one million, one hundred twenty thousand, twelve".