1222322213 has 8 divisors (see below), whose sum is σ = 1398851328. Its totient is φ = 1046271024.

The previous prime is 1222322203. The next prime is 1222322237. The reversal of 1222322213 is 3122232221.

It is a happy number.

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 1222322213 - 2¹⁶ = 1222256677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222322203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113981 + ... + 124242.

It is an arithmetic number, because the mean of its divisors is an integer number (174856416).

Almost surely, 2^1222322213 is an apocalyptic number.

It is an amenable number.

1222322213 is a deficient number, since it is larger than the sum of its proper divisors (176529115).

1222322213 is an equidigital number, since it uses as much as digits as its factorization.

1222322213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238963.

The product of its digits is 576, while the sum is 20.

The square root of 1222322213 is about 34961.7249717459. The cubic root of 1222322213 is about 1069.2072659174.

Adding to 1222322213 its reverse (3122232221), we get a palindrome (4344554434).

It can be divided in two parts, 122232221 and 3, that multiplied together give a palindrome (366696663).

The spelling of 1222322213 in words is "one billion, two hundred twenty-two million, three hundred twenty-two thousand, two hundred thirteen".