12212211112212 has 12 divisors (see below), whose sum is σ = 28495159261856. Its totient is φ = 4070737037400.

The previous prime is 12212211112151. The next prime is 12212211112219. The reversal of 12212211112212 is 21221111221221.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212211112219) 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 3 ways as a sum of consecutive naturals, for example, 508842129664 + ... + 508842129687.

Almost surely, 2^{12212211112212} is an apocalyptic number.

12212211112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12212211112212 is an abundant number, since it is smaller than the sum of its proper divisors (16282948149644).

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

12212211112212 is a wasteful number, since it uses less digits than its factorization.

12212211112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017684259358 (or 1017684259356 counting only the distinct ones).

The product of its digits is 128, while the sum is 21.

Adding to 12212211112212 its reverse (21221111221221), we get a palindrome (33433322333433).

The spelling of 12212211112212 in words is "twelve trillion, two hundred twelve billion, two hundred eleven million, one hundred twelve thousand, two hundred twelve".