12023003221 has 8 divisors (see below), whose sum is σ = 12649120344. Its totient is φ = 11412737280.

The previous prime is 12023003219. The next prime is 12023003231. The reversal of 12023003221 is 12230032021.

It can be written as a sum of positive squares in 4 ways, for example, as 4884612100 + 7138391121 = 69890^2 + 84489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12023003221 - 2¹ = 12023003219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12023003195 and 12023003204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023003231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3961240 + ... + 3964273.

It is an arithmetic number, because the mean of its divisors is an integer number (1581140043).

Almost surely, 2^12023003221 is an apocalyptic number.

It is an amenable number.

12023003221 is a deficient number, since it is larger than the sum of its proper divisors (626117123).

12023003221 is an equidigital number, since it uses as much as digits as its factorization.

12023003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7925591.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12023003221 its reverse (12230032021), we get a palindrome (24253035242).

The spelling of 12023003221 in words is "twelve billion, twenty-three million, three thousand, two hundred twenty-one".