12000122212 has 24 divisors (see below), whose sum is σ = 23598904896. Its totient is φ = 5297712288.

The previous prime is 12000122171. The next prime is 12000122219. The reversal of 12000122212 is 21222100021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 12000122192 and 12000122201.

It is not an unprimeable number, because it can be changed into a prime (12000122219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5015578 + ... + 5017969.

It is an arithmetic number, because the mean of its divisors is an integer number (983287704).

Almost surely, 2^12000122212 is an apocalyptic number.

It is an amenable number.

12000122212 is a deficient number, since it is larger than the sum of its proper divisors (11598782684).

12000122212 is a wasteful number, since it uses less digits than its factorization.

12000122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10033587 (or 10033585 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12000122212 its reverse (21222100021), we get a palindrome (33222222233).

The spelling of 12000122212 in words is "twelve billion, one hundred twenty-two thousand, two hundred twelve".