12211200111222 has 32 divisors (see below), whose sum is σ = 31012571712000. Its totient is φ = 3488914317384.

The previous prime is 12211200111191. The next prime is 12211200111223. The reversal of 12211200111222 is 22211100211221.

12211200111222 is a `hidden beast` number, since 122 + 11 + 200 + 111 + 222 = 666.

It is a super-2 number, since 2×12211200111222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12211200111195 and 12211200111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211200111223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16152380722 + ... + 16152381477.

It is an arithmetic number, because the mean of its divisors is an integer number (969142866000).

Almost surely, 2^{12211200111222} is an apocalyptic number.

12211200111222 is an abundant number, since it is smaller than the sum of its proper divisors (18801371600778).

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

12211200111222 is a wasteful number, since it uses less digits than its factorization.

12211200111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32304762217 (or 32304762211 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12211200111222 its reverse (22211100211221), we get a palindrome (34422300322443).

Subtracting 12211200111222 from its reverse (22211100211221), we obtain a palindrome (9999900099999).

The spelling of 12211200111222 in words is "twelve trillion, two hundred eleven billion, two hundred million, one hundred eleven thousand, two hundred twenty-two".