12220122011212 has 24 divisors (see below), whose sum is σ = 22123076189760. Its totient is φ = 5899251509760.

The previous prime is 12220122011179. The next prime is 12220122011219. The reversal of 12220122011212 is 21211022102221.

It is a self number, because there is not a number n which added to its sum of digits gives 12220122011212.

It is not an unprimeable number, because it can be changed into a prime (12220122011219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4932333 + ... + 6983419.

It is an arithmetic number, because the mean of its divisors is an integer number (921794841240).

Almost surely, 2^{12220122011212} is an apocalyptic number.

It is an amenable number.

12220122011212 is a deficient number, since it is larger than the sum of its proper divisors (9902954178548).

12220122011212 is a wasteful number, since it uses less digits than its factorization.

12220122011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102481 (or 2102479 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12220122011212 its reverse (21211022102221), we get a palindrome (33431144113433).

The spelling of 12220122011212 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-two million, eleven thousand, two hundred twelve".