1222345558 has 16 divisors (see below), whose sum is σ = 2096745120. Its totient is φ = 523538496.

The previous prime is 1222345529. The next prime is 1222345573. The reversal of 1222345558 is 8555432221.

It is a super-3 number, since 3×1222345558³ (a number of 28 digits) contains 333 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2791 + ... + 49522.

It is an arithmetic number, because the mean of its divisors is an integer number (131046570).

Almost surely, 2^1222345558 is an apocalyptic number.

1222345558 is a deficient number, since it is larger than the sum of its proper divisors (874399562).

1222345558 is a wasteful number, since it uses less digits than its factorization.

1222345558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53991.

The product of its digits is 96000, while the sum is 37.

The square root of 1222345558 is about 34962.0588352574. The cubic root of 1222345558 is about 1069.2140727654.

Adding to 1222345558 its reverse (8555432221), we get a palindrome (9777777779).

The spelling of 1222345558 in words is "one billion, two hundred twenty-two million, three hundred forty-five thousand, five hundred fifty-eight".