12211210222223 has 4 divisors (see below), whose sum is σ = 12211496235048. Its totient is φ = 12210924209400.

The previous prime is 12211210222181. The next prime is 12211210222249. The reversal of 12211210222223 is 32222201211221.

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

It is a cyclic number.

It is not a de Polignac number, because 12211210222223 - 2¹² = 12211210218127 is a prime.

It is a super-2 number, since 2×12211210222223² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211210222273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142942361 + ... + 143027762.

It is an arithmetic number, because the mean of its divisors is an integer number (3052874058762).

Almost surely, 2^{12211210222223} is an apocalyptic number.

12211210222223 is a deficient number, since it is larger than the sum of its proper divisors (286012825).

12211210222223 is an equidigital number, since it uses as much as digits as its factorization.

12211210222223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286012824.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12211210222223 its reverse (32222201211221), we get a palindrome (44433411433444).

The spelling of 12211210222223 in words is "twelve trillion, two hundred eleven billion, two hundred ten million, two hundred twenty-two thousand, two hundred twenty-three".