12230919 has 12 divisors (see below), whose sum is σ = 18321576. Its totient is φ = 8153784.

The previous prime is 12230903. The next prime is 12230929. The reversal of 12230919 is 91903221.

It is not a de Polignac number, because 12230919 - 2⁴ = 12230903 is a prime.

It is a super-2 number, since 2×12230919² = 299190759169122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12230892 and 12230901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24924 + ... + 25409.

It is an arithmetic number, because the mean of its divisors is an integer number (1526798).

Almost surely, 2^12230919 is an apocalyptic number.

12230919 is a deficient number, since it is larger than the sum of its proper divisors (6090657).

12230919 is an frugal number, since it uses more digits than its factorization.

12230919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50348 (or 50336 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 12230919 is about 3497.2730805586. The cubic root of 12230919 is about 230.4020629698.

The spelling of 12230919 in words is "twelve million, two hundred thirty thousand, nine hundred nineteen".