1222223243 has 8 divisors (see below), whose sum is σ = 1306470816. Its totient is φ = 1140568000.

The previous prime is 1222223221. The next prime is 1222223287. The reversal of 1222223243 is 3423222221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222223243 - 2¹⁶ = 1222157707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222223543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647108 + ... + 648993.

It is an arithmetic number, because the mean of its divisors is an integer number (163308852).

Almost surely, 2^1222223243 is an apocalyptic number.

1222223243 is a deficient number, since it is larger than the sum of its proper divisors (84247573).

1222223243 is a wasteful number, since it uses less digits than its factorization.

1222223243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296165.

The product of its digits is 2304, while the sum is 23.

The square root of 1222223243 is about 34960.3095381033. The cubic root of 1222223243 is about 1069.1784076512.

Adding to 1222223243 its reverse (3423222221), we get a palindrome (4645445464).

The spelling of 1222223243 in words is "one billion, two hundred twenty-two million, two hundred twenty-three thousand, two hundred forty-three".