12222101111212 has 12 divisors (see below), whose sum is σ = 21689925916176. Its totient is φ = 6024979420880.

The previous prime is 12222101111189. The next prime is 12222101111221. The reversal of 12222101111212 is 21211110122221.

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 12222101111212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21517783363 + ... + 21517783930.

It is an arithmetic number, because the mean of its divisors is an integer number (1807493826348).

Almost surely, 2^{12222101111212} is an apocalyptic number.

It is an amenable number.

12222101111212 is a deficient number, since it is larger than the sum of its proper divisors (9467824804964).

12222101111212 is a wasteful number, since it uses less digits than its factorization.

12222101111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43035567368 (or 43035567366 counting only the distinct ones).

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

Adding to 12222101111212 its reverse (21211110122221), we get a palindrome (33433211233433).

The spelling of 12222101111212 in words is "twelve trillion, two hundred twenty-two billion, one hundred one million, one hundred eleven thousand, two hundred twelve".