1213223333 has 16 divisors (see below), whose sum is σ = 1421785344. Its totient is φ = 1013523840.

The previous prime is 1213223293. The next prime is 1213223399. The reversal of 1213223333 is 3333223121.

It is not a de Polignac number, because 1213223333 - 2⁶ = 1213223269 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1213223299 and 1213223308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213223233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457016 + ... + 459662.

It is an arithmetic number, because the mean of its divisors is an integer number (88861584).

Almost surely, 2^1213223333 is an apocalyptic number.

It is an amenable number.

1213223333 is a deficient number, since it is larger than the sum of its proper divisors (208562011).

1213223333 is a wasteful number, since it uses less digits than its factorization.

1213223333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292.

The product of its digits is 1944, while the sum is 23.

The square root of 1213223333 is about 34831.3556009524. The cubic root of 1213223333 is about 1066.5476211654.

Adding to 1213223333 its reverse (3333223121), we get a palindrome (4546446454).

The spelling of 1213223333 in words is "one billion, two hundred thirteen million, two hundred twenty-three thousand, three hundred thirty-three".