1222321223 has 4 divisors (see below), whose sum is σ = 1275465648. Its totient is φ = 1169176800.

The previous prime is 1222321213. The next prime is 1222321297. The reversal of 1222321223 is 3221232221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3221232221 = 29863 ⋅107867.

It is a cyclic number.

It is not a de Polignac number, because 1222321223 - 2¹⁰ = 1222320199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222321195 and 1222321204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222321213) 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, 26572178 + ... + 26572223.

It is an arithmetic number, because the mean of its divisors is an integer number (318866412).

Almost surely, 2^1222321223 is an apocalyptic number.

1222321223 is a deficient number, since it is larger than the sum of its proper divisors (53144425).

1222321223 is an equidigital number, since it uses as much as digits as its factorization.

1222321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53144424.

The product of its digits is 576, while the sum is 20.

The square root of 1222321223 is about 34961.7108134027. The cubic root of 1222321223 is about 1069.2069772550.

Adding to 1222321223 its reverse (3221232221), we get a palindrome (4443553444).

The spelling of 1222321223 in words is "one billion, two hundred twenty-two million, three hundred twenty-one thousand, two hundred twenty-three".