12022211111212 has 48 divisors (see below), whose sum is σ = 21825971335168. Its totient is φ = 5788213421760.

The previous prime is 12022211111191. The next prime is 12022211111213. The reversal of 12022211111212 is 21211111222021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12022211111212.

It is not an unprimeable number, because it can be changed into a prime (12022211111213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24730273 + ... + 25211719.

Almost surely, 2^{12022211111212} is an apocalyptic number.

It is an amenable number.

12022211111212 is a deficient number, since it is larger than the sum of its proper divisors (9803760223956).

12022211111212 is a wasteful number, since it uses less digits than its factorization.

12022211111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482486 (or 482484 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12022211111212 its reverse (21211111222021), we get a palindrome (33233322333233).

The spelling of 12022211111212 in words is "twelve trillion, twenty-two billion, two hundred eleven million, one hundred eleven thousand, two hundred twelve".