12230320021 has 8 divisors (see below), whose sum is σ = 12517464960. Its totient is φ = 11943298752.

The previous prime is 12230320009. The next prime is 12230320031. The reversal of 12230320021 is 12002303221.

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 12230320021 - 2²¹ = 12228222869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12230319977 and 12230320004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230320001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186996 + ... + 243778.

It is an arithmetic number, because the mean of its divisors is an integer number (1564683120).

Almost surely, 2^12230320021 is an apocalyptic number.

It is an amenable number.

12230320021 is a deficient number, since it is larger than the sum of its proper divisors (287144939).

12230320021 is an equidigital number, since it uses as much as digits as its factorization.

12230320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61835.

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

Adding to 12230320021 its reverse (12002303221), we get a palindrome (24232623242).

It can be divided in two parts, 122303200 and 21, that added together give a palindrome (122303221).

The spelling of 12230320021 in words is "twelve billion, two hundred thirty million, three hundred twenty thousand, twenty-one".