12211111110212 has 36 divisors (see below), whose sum is σ = 24983249659200. Its totient is φ = 5207035158864.

The previous prime is 12211111110199. The next prime is 12211111110223. The reversal of 12211111110212 is 21201111111221.

It is a super-2 number, since 2×12211111110212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156497648 + ... + 156575655.

It is an arithmetic number, because the mean of its divisors is an integer number (693979157200).

Almost surely, 2^{12211111110212} is an apocalyptic number.

It is an amenable number.

12211111110212 is an abundant number, since it is smaller than the sum of its proper divisors (12772138548988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211111110212 is a wasteful number, since it uses less digits than its factorization.

12211111110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313073520 (or 313073511 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 12211111110212 its reverse (21201111111221), we get a palindrome (33412222221433).

The spelling of 12211111110212 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, one hundred ten thousand, two hundred twelve".