12002122312 has 16 divisors (see below), whose sum is σ = 23688399600. Its totient is φ = 5685215760.

The previous prime is 12002122309. The next prime is 12002122313. The reversal of 12002122312 is 21322120021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12002122313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39480514 + ... + 39480817.

It is an arithmetic number, because the mean of its divisors is an integer number (1480524975).

Almost surely, 2^12002122312 is an apocalyptic number.

It is an amenable number.

12002122312 is a deficient number, since it is larger than the sum of its proper divisors (11686277288).

12002122312 is a wasteful number, since it uses less digits than its factorization.

12002122312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78961356 (or 78961352 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12002122312 its reverse (21322120021), we get a palindrome (33324242333).

The spelling of 12002122312 in words is "twelve billion, two million, one hundred twenty-two thousand, three hundred twelve".