12121220200112 has 20 divisors (see below), whose sum is σ = 23485345457016. Its totient is φ = 6060485888640.

The previous prime is 12121220200097. The next prime is 12121220200147. The reversal of 12121220200112 is 21100202212121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6955589 + ... + 8521892.

Almost surely, 2^{12121220200112} is an apocalyptic number.

It is an amenable number.

12121220200112 is a deficient number, since it is larger than the sum of its proper divisors (11364125256904).

12121220200112 is a wasteful number, since it uses less digits than its factorization.

12121220200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15526436 (or 15526430 counting only the distinct ones).

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

Adding to 12121220200112 its reverse (21100202212121), we get a palindrome (33221422412233).

The spelling of 12121220200112 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty million, two hundred thousand, one hundred twelve".