12211101112222 has 8 divisors (see below), whose sum is σ = 18337537248696. Its totient is φ = 6098588695992.

The previous prime is 12211101112211. The next prime is 12211101112297. The reversal of 12211101112222 is 22221110111221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12211101112222² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12211101112222.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3480927868 + ... + 3480931375.

It is an arithmetic number, because the mean of its divisors is an integer number (2292192156087).

Almost surely, 2^{12211101112222} is an apocalyptic number.

12211101112222 is a deficient number, since it is larger than the sum of its proper divisors (6126436136474).

12211101112222 is an equidigital number, since it uses as much as digits as its factorization.

12211101112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6961860122.

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

Adding to 12211101112222 its reverse (22221110111221), we get a palindrome (34432211223443).

It can be divided in two parts, 1221110 and 1112222, that added together give a palindrome (2333332).

The spelling of 12211101112222 in words is "twelve trillion, two hundred eleven billion, one hundred one million, one hundred twelve thousand, two hundred twenty-two".