12218043 has 8 divisors (see below), whose sum is σ = 16381456. Its totient is φ = 8100000.

The previous prime is 12218033. The next prime is 12218051. The reversal of 12218043 is 34081221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12218043 - 2⁴ = 12218027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12218033) 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, 10708 + ... + 11793.

It is an arithmetic number, because the mean of its divisors is an integer number (2047682).

Almost surely, 2^12218043 is an apocalyptic number.

12218043 is a deficient number, since it is larger than the sum of its proper divisors (4163413).

12218043 is a wasteful number, since it uses less digits than its factorization.

12218043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22685.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12218043 is about 3495.4317329909. The cubic root of 12218043 is about 230.3211832852.

Adding to 12218043 its reverse (34081221), we get a palindrome (46299264).

The spelling of 12218043 in words is "twelve million, two hundred eighteen thousand, forty-three".