12212201212112 has 40 divisors (see below), whose sum is σ = 25829700460032. Its totient is φ = 5547226809600.

The previous prime is 12212201212087. The next prime is 12212201212117. The reversal of 12212201212112 is 21121210221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212201212117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23326253 + ... + 23844044.

Almost surely, 2^{12212201212112} is an apocalyptic number.

It is an amenable number.

12212201212112 is an abundant number, since it is smaller than the sum of its proper divisors (13617499247920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212201212112 is a wasteful number, since it uses less digits than its factorization.

12212201212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47171787 (or 47171781 counting only the distinct ones).

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

Adding to 12212201212112 its reverse (21121210221221), we get a palindrome (33333411433333).

The spelling of 12212201212112 in words is "twelve trillion, two hundred twelve billion, two hundred one million, two hundred twelve thousand, one hundred twelve".