12012122222012 has 18 divisors (see below), whose sum is σ = 23105962374264. Its totient is φ = 5460055555240.

The previous prime is 12012122221997. The next prime is 12012122222053. The reversal of 12012122222012 is 21022222121021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12409216688 + ... + 12409217655.

It is an arithmetic number, because the mean of its divisors is an integer number (1283664576348).

Almost surely, 2^{12012122222012} is an apocalyptic number.

It is an amenable number.

12012122222012 is a deficient number, since it is larger than the sum of its proper divisors (11093840152252).

12012122222012 is a wasteful number, since it uses less digits than its factorization.

12012122222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24818434369 (or 24818434356 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12012122222012 its reverse (21022222121021), we get a palindrome (33034344343033).

The spelling of 12012122222012 in words is "twelve trillion, twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, twelve".