12001121122112 has 28 divisors (see below), whose sum is σ = 23814907773696. Its totient is φ = 6000514439040.

The previous prime is 12001121122103. The next prime is 12001121122127. The reversal of 12001121122112 is 21122112110021.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8606753 + ... + 9903455.

Almost surely, 2^{12001121122112} is an apocalyptic number.

It is an amenable number.

12001121122112 is a deficient number, since it is larger than the sum of its proper divisors (11813786651584).

12001121122112 is a wasteful number, since it uses less digits than its factorization.

12001121122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441326 (or 1441316 counting only the distinct ones).

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

Adding to 12001121122112 its reverse (21122112110021), we get a palindrome (33123233232133).

The spelling of 12001121122112 in words is "twelve trillion, one billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred twelve".