12302030221 has 4 divisors (see below), whose sum is σ = 13248340252. Its totient is φ = 11355720192.

The previous prime is 12302030203. The next prime is 12302030311. The reversal of 12302030221 is 12203020321.

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 2022300900 + 10279729321 = 44970^2 + 101389^2 .

It is a cyclic number.

It is not a de Polignac number, because 12302030221 - 2¹⁷ = 12301899149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12302030195 and 12302030204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302031221) 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, 473154996 + ... + 473155021.

It is an arithmetic number, because the mean of its divisors is an integer number (3312085063).

Almost surely, 2^12302030221 is an apocalyptic number.

It is an amenable number.

12302030221 is a deficient number, since it is larger than the sum of its proper divisors (946310031).

12302030221 is an equidigital number, since it uses as much as digits as its factorization.

12302030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946310030.

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

Adding to 12302030221 its reverse (12203020321), we get a palindrome (24505050542).

The spelling of 12302030221 in words is "twelve billion, three hundred two million, thirty thousand, two hundred twenty-one".