1222233213 has 4 divisors (see below), whose sum is σ = 1629644288. Its totient is φ = 814822140.

The previous prime is 1222233209. The next prime is 1222233251. The reversal of 1222233213 is 3123322221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3123322221 = 3 ⋅1041107407.

It is not a de Polignac number, because 1222233213 - 2² = 1222233209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222233213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222233283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203705533 + ... + 203705538.

It is an arithmetic number, because the mean of its divisors is an integer number (407411072).

Almost surely, 2^1222233213 is an apocalyptic number.

It is an amenable number.

1222233213 is a deficient number, since it is larger than the sum of its proper divisors (407411075).

1222233213 is an equidigital number, since it uses as much as digits as its factorization.

1222233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407411074.

The product of its digits is 864, while the sum is 21.

The square root of 1222233213 is about 34960.4521280832. The cubic root of 1222233213 is about 1069.1813148342.

Adding to 1222233213 its reverse (3123322221), we get a palindrome (4345555434).

The spelling of 1222233213 in words is "one billion, two hundred twenty-two million, two hundred thirty-three thousand, two hundred thirteen".