12012012122 has 64 divisors (see below), whose sum is σ = 20818280448. Its totient is φ = 5147400000.

The previous prime is 12012012083. The next prime is 12012012151. The reversal of 12012012122 is 22121021021.

It is a junction number, because it is equal to n+sod(n) for n = 12012012097 and 12012012106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8044808 + ... + 8046300.

It is an arithmetic number, because the mean of its divisors is an integer number (325285632).

Almost surely, 2^12012012122 is an apocalyptic number.

12012012122 is a deficient number, since it is larger than the sum of its proper divisors (8806268326).

12012012122 is a wasteful number, since it uses less digits than its factorization.

12012012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12012012122 its reverse (22121021021), we get a palindrome (34133033143).

The spelling of 12012012122 in words is "twelve billion, twelve million, twelve thousand, one hundred twenty-two".