1222323223 has 4 divisors (see below), whose sum is σ = 1333443528. Its totient is φ = 1111202920.

The previous prime is 1222323209. The next prime is 1222323229. The reversal of 1222323223 is 3223232221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3223232221 = 11 ⋅293021111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222323223 is a prime.

It is a super-2 number, since 2×1222323223² = 2988148122970215458, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222323194 and 1222323203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222323229) 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, 55560136 + ... + 55560157.

It is an arithmetic number, because the mean of its divisors is an integer number (333360882).

Almost surely, 2^1222323223 is an apocalyptic number.

1222323223 is a deficient number, since it is larger than the sum of its proper divisors (111120305).

1222323223 is a wasteful number, since it uses less digits than its factorization.

1222323223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111120304.

The product of its digits is 1728, while the sum is 22.

The square root of 1222323223 is about 34961.7394161103. The cubic root of 1222323223 is about 1069.2075604112.

Adding to 1222323223 its reverse (3223232221), we get a palindrome (4445555444).

The spelling of 1222323223 in words is "one billion, two hundred twenty-two million, three hundred twenty-three thousand, two hundred twenty-three".