6221223 has 12 divisors (see below), whose sum is σ = 9052680. Its totient is φ = 4116816.

The previous prime is 6221213. The next prime is 6221231. The reversal of 6221223 is 3221226.

It is not a de Polignac number, because 6221223 - 2⁵ = 6221191 is a prime.

6221223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6221196 and 6221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1236 + ... + 3737.

It is an arithmetic number, because the mean of its divisors is an integer number (754390).

Almost surely, 2^6221223 is an apocalyptic number.

6221223 is a deficient number, since it is larger than the sum of its proper divisors (2831457).

6221223 is a wasteful number, since it uses less digits than its factorization.

6221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5118 (or 5115 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 6221223 is about 2494.2379597785. The cubic root of 6221223 is about 183.9184322614.

Adding to 6221223 its reverse (3221226), we get a palindrome (9442449).

The spelling of 6221223 in words is "six million, two hundred twenty-one thousand, two hundred twenty-three".