12211212102223 has 48 divisors (see below), whose sum is σ = 12850595002336. Its totient is φ = 11601801953280.

The previous prime is 12211212102191. The next prime is 12211212102227. The reversal of 12211212102223 is 32220121211221.

It is not a de Polignac number, because 12211212102223 - 2⁵ = 12211212102191 is a prime.

It is a super-2 number, since 2×12211212102223² (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 = 12211212102194 and 12211212102203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211212102227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18473845513 + ... + 18473846173.

Almost surely, 2^{12211212102223} is an apocalyptic number.

12211212102223 is a deficient number, since it is larger than the sum of its proper divisors (639382900113).

12211212102223 is an equidigital number, since it uses as much as digits as its factorization.

12211212102223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 1743 counting only the distinct ones).

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

Adding to 12211212102223 its reverse (32220121211221), we get a palindrome (44431333313444).

The spelling of 12211212102223 in words is "twelve trillion, two hundred eleven billion, two hundred twelve million, one hundred two thousand, two hundred twenty-three".