1223333668 has 24 divisors (see below), whose sum is σ = 2269020600. Its totient is φ = 575113728.

The previous prime is 1223333663. The next prime is 1223333669. The reversal of 1223333668 is 8663333221.

It can be written as a sum of positive squares in 4 ways, for example, as 49449024 + 1173884644 = 7032^2 + 34262^2 .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1223333663) 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, 64278 + ... + 81106.

It is an arithmetic number, because the mean of its divisors is an integer number (94542525).

Almost surely, 2^1223333668 is an apocalyptic number.

It is an amenable number.

1223333668 is a deficient number, since it is larger than the sum of its proper divisors (1045686932).

1223333668 is a wasteful number, since it uses less digits than its factorization.

1223333668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17919 (or 17917 counting only the distinct ones).

The product of its digits is 93312, while the sum is 37.

The square root of 1223333668 is about 34976.1871564069. The cubic root of 1223333668 is about 1069.5021027627.

Adding to 1223333668 its reverse (8663333221), we get a palindrome (9886666889).

The spelling of 1223333668 in words is "one billion, two hundred twenty-three million, three hundred thirty-three thousand, six hundred sixty-eight".