12213273 has 8 divisors (see below), whose sum is σ = 16321536. Its totient is φ = 8123600.

The previous prime is 12213269. The next prime is 12213283. The reversal of 12213273 is 37231221.

12213273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12213273 - 2² = 12213269 is a prime.

It is a super-3 number, since 3×12213273³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12213283) 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, 3033 + ... + 5798.

It is an arithmetic number, because the mean of its divisors is an integer number (2040192).

Almost surely, 2^12213273 is an apocalyptic number.

It is an amenable number.

12213273 is a deficient number, since it is larger than the sum of its proper divisors (4108263).

12213273 is an equidigital number, since it uses as much as digits as its factorization.

12213273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9295.

The product of its digits is 504, while the sum is 21.

The square root of 12213273 is about 3494.7493472351. The cubic root of 12213273 is about 230.2912064429.

Adding to 12213273 its reverse (37231221), we get a palindrome (49444494).

The spelling of 12213273 in words is "twelve million, two hundred thirteen thousand, two hundred seventy-three".