12214747 has 4 divisors (see below), whose sum is σ = 12250296. Its totient is φ = 12179200.

The previous prime is 12214729. The next prime is 12214759. The reversal of 12214747 is 74741221.

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

It is a cyclic number.

It is not a de Polignac number, because 12214747 - 2¹¹ = 12212699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12214717) 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, 17254 + ... + 17947.

It is an arithmetic number, because the mean of its divisors is an integer number (3062574).

Almost surely, 2^12214747 is an apocalyptic number.

12214747 is a deficient number, since it is larger than the sum of its proper divisors (35549).

12214747 is an equidigital number, since it uses as much as digits as its factorization.

12214747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35548.

The product of its digits is 3136, while the sum is 28.

The square root of 12214747 is about 3494.9602286721. The cubic root of 12214747 is about 230.3004705602.

Adding to 12214747 its reverse (74741221), we get a palindrome (86955968).

The spelling of 12214747 in words is "twelve million, two hundred fourteen thousand, seven hundred forty-seven".