12023122223 has 4 divisors (see below), whose sum is σ = 13740711120. Its totient is φ = 10305533328.

The previous prime is 12023122201. The next prime is 12023122249. The reversal of 12023122223 is 32222132021.

It is a happy number.

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 12023122223 - 2⁶ = 12023122159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12023122195 and 12023122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023122253) 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, 858794438 + ... + 858794451.

It is an arithmetic number, because the mean of its divisors is an integer number (3435177780).

Almost surely, 2^12023122223 is an apocalyptic number.

12023122223 is a deficient number, since it is larger than the sum of its proper divisors (1717588897).

12023122223 is an equidigital number, since it uses as much as digits as its factorization.

12023122223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717588896.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12023122223 its reverse (32222132021), we get a palindrome (44245254244).

The spelling of 12023122223 in words is "twelve billion, twenty-three million, one hundred twenty-two thousand, two hundred twenty-three".