12211230211123 has 4 divisors (see below), whose sum is σ = 12211715367208. Its totient is φ = 12210745055040.

The previous prime is 12211230211091. The next prime is 12211230211199. The reversal of 12211230211123 is 32111203211221.

It is a happy number.

12211230211123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12211230211123 - 2⁵ = 12211230211091 is a prime.

It is a super-2 number, since 2×12211230211123² (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 = 12211230211094 and 12211230211103.

It is not an unprimeable number, because it can be changed into a prime (12211230214123) 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, 242540286 + ... + 242590627.

It is an arithmetic number, because the mean of its divisors is an integer number (3052928841802).

Almost surely, 2^{12211230211123} is an apocalyptic number.

12211230211123 is a deficient number, since it is larger than the sum of its proper divisors (485156085).

12211230211123 is an equidigital number, since it uses as much as digits as its factorization.

12211230211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485156084.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12211230211123 its reverse (32111203211221), we get a palindrome (44322433422344).

The spelling of 12211230211123 in words is "twelve trillion, two hundred eleven billion, two hundred thirty million, two hundred eleven thousand, one hundred twenty-three".