12321219 has 8 divisors (see below), whose sum is σ = 16515072. Its totient is φ = 8170760.

The previous prime is 12321193. The next prime is 12321223. The reversal of 12321219 is 91212321.

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 12321219 - 2⁵ = 12321187 is a prime.

It is a super-2 number, since 2×12321219² = 303624875291922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12321195 and 12321204.

It is not an unprimeable number, because it can be changed into a prime (12321289) 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, 10179 + ... + 11324.

It is an arithmetic number, because the mean of its divisors is an integer number (2064384).

Almost surely, 2^12321219 is an apocalyptic number.

12321219 is a deficient number, since it is larger than the sum of its proper divisors (4193853).

12321219 is a wasteful number, since it uses less digits than its factorization.

12321219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21697.

The product of its digits is 216, while the sum is 21.

The square root of 12321219 is about 3510.1593980901. The cubic root of 12321219 is about 230.9676872401.

The spelling of 12321219 in words is "twelve million, three hundred twenty-one thousand, two hundred nineteen".