12211112220223 has 4 divisors (see below), whose sum is σ = 13955556823120. Its totient is φ = 10466667617328.

The previous prime is 12211112220193. The next prime is 12211112220253. The reversal of 12211112220223 is 32202221111221.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12211112220193) and next prime (12211112220253).

It is a cyclic number.

It is not a de Polignac number, because 12211112220223 - 2¹³ = 12211112212031 is a prime.

It is a super-2 number, since 2×12211112220223² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12211112220194 and 12211112220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211112220253) 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 3 ways as a sum of consecutive naturals, for example, 872222301438 + ... + 872222301451.

It is an arithmetic number, because the mean of its divisors is an integer number (3488889205780).

Almost surely, 2^{12211112220223} is an apocalyptic number.

12211112220223 is a deficient number, since it is larger than the sum of its proper divisors (1744444602897).

12211112220223 is an equidigital number, since it uses as much as digits as its factorization.

12211112220223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744444602896.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12211112220223 its reverse (32202221111221), we get a palindrome (44413333331444).

The spelling of 12211112220223 in words is "twelve trillion, two hundred eleven billion, one hundred twelve million, two hundred twenty thousand, two hundred twenty-three".