12300221 has 4 divisors (see below), whose sum is σ = 12456000. Its totient is φ = 12144444.

The previous prime is 12300203. The next prime is 12300227. The reversal of 12300221 is 12200321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12200321 = 7 ⋅1742903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12300221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12300227) 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, 77771 + ... + 77928.

It is an arithmetic number, because the mean of its divisors is an integer number (3114000).

Almost surely, 2^12300221 is an apocalyptic number.

It is an amenable number.

12300221 is a deficient number, since it is larger than the sum of its proper divisors (155779).

12300221 is an equidigital number, since it uses as much as digits as its factorization.

12300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155778.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12300221 is about 3507.1670904022. The cubic root of 12300221 is about 230.8364064749.

Adding to 12300221 its reverse (12200321), we get a palindrome (24500542).

It can be divided in two parts, 12300 and 221, that added together give a palindrome (12521).

The spelling of 12300221 in words is "twelve million, three hundred thousand, two hundred twenty-one".