12012111002122 has 128 divisors (see below), whose sum is σ = 23828577822720. Its totient is φ = 4406082428160.

The previous prime is 12012111002069. The next prime is 12012111002131. The reversal of 12012111002122 is 22120011121021.

It is a junction number, because it is equal to n+sod(n) for n = 12012111002096 and 12012111002105.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25987404 + ... + 26445592.

It is an arithmetic number, because the mean of its divisors is an integer number (186160764240).

Almost surely, 2^{12012111002122} is an apocalyptic number.

12012111002122 is a deficient number, since it is larger than the sum of its proper divisors (11816466820598).

12012111002122 is a wasteful number, since it uses less digits than its factorization.

12012111002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458396.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12012111002122 its reverse (22120011121021), we get a palindrome (34132122123143).

The spelling of 12012111002122 in words is "twelve trillion, twelve billion, one hundred eleven million, two thousand, one hundred twenty-two".