1222112213 has 8 divisors (see below), whose sum is σ = 1423052928. Its totient is φ = 1027759824.

The previous prime is 1222112207. The next prime is 1222112219. The reversal of 1222112213 is 3122112221.

It is an interprime number because it is at equal distance from previous prime (1222112207) and next prime (1222112219).

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

It is not a de Polignac number, because 1222112213 - 2⁴ = 1222112197 is a prime.

It is a super-2 number, since 2×1222112213² = 2987116522327514738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222112191 and 1222112200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222112219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1646681 + ... + 1647422.

It is an arithmetic number, because the mean of its divisors is an integer number (177881616).

Almost surely, 2^1222112213 is an apocalyptic number.

It is an amenable number.

1222112213 is a deficient number, since it is larger than the sum of its proper divisors (200940715).

1222112213 is an equidigital number, since it uses as much as digits as its factorization.

1222112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294163.

The product of its digits is 96, while the sum is 17.

The square root of 1222112213 is about 34958.7215584323. The cubic root of 1222112213 is about 1069.1460310037.

Adding to 1222112213 its reverse (3122112221), we get a palindrome (4344224434).

The spelling of 1222112213 in words is "one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred thirteen".