1222200223 has 4 divisors (see below), whose sum is σ = 1250623528. Its totient is φ = 1193776920.

The previous prime is 1222200181. The next prime is 1222200229. The reversal of 1222200223 is 3220022221.

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 1222200223 - 2⁹ = 1222199711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222200197 and 1222200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222200229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14211588 + ... + 14211673.

It is an arithmetic number, because the mean of its divisors is an integer number (312655882).

Almost surely, 2^1222200223 is an apocalyptic number.

1222200223 is a deficient number, since it is larger than the sum of its proper divisors (28423305).

1222200223 is an equidigital number, since it uses as much as digits as its factorization.

1222200223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28423304.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1222200223 is about 34959.9803060585. The cubic root of 1222200223 is about 1069.1716951183.

Adding to 1222200223 its reverse (3220022221), we get a palindrome (4442222444).

The spelling of 1222200223 in words is "one billion, two hundred twenty-two million, two hundred thousand, two hundred twenty-three".