12214277 has 4 divisors (see below), whose sum is σ = 12233100. Its totient is φ = 12195456.

The previous prime is 12214273. The next prime is 12214289. The reversal of 12214277 is 77241221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3740356 + 8473921 = 1934^2 + 2911^2 .

It is a cyclic number.

It is not a de Polignac number, because 12214277 - 2² = 12214273 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 (12214273) 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, 8402 + ... + 9747.

It is an arithmetic number, because the mean of its divisors is an integer number (3058275).

Almost surely, 2^12214277 is an apocalyptic number.

It is an amenable number.

12214277 is a deficient number, since it is larger than the sum of its proper divisors (18823).

12214277 is an equidigital number, since it uses as much as digits as its factorization.

12214277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18822.

The product of its digits is 1568, while the sum is 26.

The square root of 12214277 is about 3494.8929883474. The cubic root of 12214277 is about 230.2975166824.

Adding to 12214277 its reverse (77241221), we get a palindrome (89455498).

The spelling of 12214277 in words is "twelve million, two hundred fourteen thousand, two hundred seventy-seven".