12211111112212 has 24 divisors (see below), whose sum is σ = 22298962726656. Its totient is φ = 5839988714208.

The previous prime is 12211111112171. The next prime is 12211111112251. The reversal of 12211111112212 is 21221111111221.

12211111112212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12211111112212² (a number of 27 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12211111112212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3895813 + ... + 6292819.

It is an arithmetic number, because the mean of its divisors is an integer number (929123446944).

Almost surely, 2^{12211111112212} is an apocalyptic number.

It is an amenable number.

12211111112212 is a deficient number, since it is larger than the sum of its proper divisors (10087851614444).

12211111112212 is a wasteful number, since it uses less digits than its factorization.

12211111112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452407 (or 2452405 counting only the distinct ones).

The product of its digits is 32, while the sum is 19.

Adding to 12211111112212 its reverse (21221111111221), we get a palindrome (33432222223433).

Subtracting 12211111112212 from its reverse (21221111111221), we obtain a palindrome (9009999999009).

It can be divided in two parts, 1221111111221 and 2, that multiplied together give a palindrome (2442222222442).

The spelling of 12211111112212 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, one hundred twelve thousand, two hundred twelve".