12233121211 has 4 divisors (see below), whose sum is σ = 12253476424. Its totient is φ = 12212766000.

The previous prime is 12233121181. The next prime is 12233121269. The reversal of 12233121211 is 11212133221.

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 12233121211 - 2⁵ = 12233121179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12233121611) 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, 10176705 + ... + 10177906.

It is an arithmetic number, because the mean of its divisors is an integer number (3063369106).

Almost surely, 2^12233121211 is an apocalyptic number.

12233121211 is a deficient number, since it is larger than the sum of its proper divisors (20355213).

12233121211 is an equidigital number, since it uses as much as digits as its factorization.

12233121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20355212.

The product of its digits is 144, while the sum is 19.

Adding to 12233121211 its reverse (11212133221), we get a palindrome (23445254432).

The spelling of 12233121211 in words is "twelve billion, two hundred thirty-three million, one hundred twenty-one thousand, two hundred eleven".