12220713 has 12 divisors (see below), whose sum is σ = 18306288. Its totient is φ = 8146980.

The previous prime is 12220699. The next prime is 12220717. The reversal of 12220713 is 31702221.

It is not a de Polignac number, because 12220713 - 2⁸ = 12220457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12220717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24903 + ... + 25388.

It is an arithmetic number, because the mean of its divisors is an integer number (1525524).

Almost surely, 2^12220713 is an apocalyptic number.

It is an amenable number.

12220713 is a deficient number, since it is larger than the sum of its proper divisors (6085575).

12220713 is an frugal number, since it uses more digits than its factorization.

12220713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50306 (or 50294 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12220713 is about 3495.8136391976. The cubic root of 12220713 is about 230.3379593698.

Adding to 12220713 its reverse (31702221), we get a palindrome (43922934).

The spelling of 12220713 in words is "twelve million, two hundred twenty thousand, seven hundred thirteen".