12023110221 has 4 divisors (see below), whose sum is σ = 16030813632. Its totient is φ = 8015406812.

The previous prime is 12023110217. The next prime is 12023110237. The reversal of 12023110221 is 12201132021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12023110221 - 2² = 12023110217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12023110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023110201) 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, 2003851701 + ... + 2003851706.

It is an arithmetic number, because the mean of its divisors is an integer number (4007703408).

Almost surely, 2^12023110221 is an apocalyptic number.

It is an amenable number.

12023110221 is a deficient number, since it is larger than the sum of its proper divisors (4007703411).

12023110221 is an equidigital number, since it uses as much as digits as its factorization.

12023110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007703410.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12023110221 its reverse (12201132021), we get a palindrome (24224242242).

The spelling of 12023110221 in words is "twelve billion, twenty-three million, one hundred ten thousand, two hundred twenty-one".