1222213113 has 48 divisors (see below), whose sum is σ = 2045414592. Its totient is φ = 695040000.

The previous prime is 1222213093. The next prime is 1222213117. The reversal of 1222213113 is 3113122221.

It is not a de Polignac number, because 1222213113 - 2⁵ = 1222213081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222213117) 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 47 ways as a sum of consecutive naturals, for example, 673978 + ... + 675788.

It is an arithmetic number, because the mean of its divisors is an integer number (42612804).

Almost surely, 2^1222213113 is an apocalyptic number.

It is an amenable number.

1222213113 is a deficient number, since it is larger than the sum of its proper divisors (823201479).

1222213113 is a wasteful number, since it uses less digits than its factorization.

1222213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246 (or 2243 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1222213113 is about 34960.1646592232. The cubic root of 1222213113 is about 1069.1754537972.

Adding to 1222213113 its reverse (3113122221), we get a palindrome (4335335334).

The spelling of 1222213113 in words is "one billion, two hundred twenty-two million, two hundred thirteen thousand, one hundred thirteen".