12230130033221 has 4 divisors (see below), whose sum is σ = 12230463343212. Its totient is φ = 12229796723232.

The previous prime is 12230130033217. The next prime is 12230130033259. The reversal of 12230130033221 is 12233003103221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1806846756100 + 10423283277121 = 1344190^2 + 3228511^2 .

It is a cyclic number.

It is not a de Polignac number, because 12230130033221 - 2² = 12230130033217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230130033211) 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, 166599950 + ... + 166673343.

It is an arithmetic number, because the mean of its divisors is an integer number (3057615835803).

Almost surely, 2^{12230130033221} is an apocalyptic number.

It is an amenable number.

12230130033221 is a deficient number, since it is larger than the sum of its proper divisors (333309991).

12230130033221 is an equidigital number, since it uses as much as digits as its factorization.

12230130033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333309990.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12230130033221 its reverse (12233003103221), we get a palindrome (24463133136442).

The spelling of 12230130033221 in words is "twelve trillion, two hundred thirty billion, one hundred thirty million, thirty-three thousand, two hundred twenty-one".