1222123108 has 12 divisors (see below), whose sum is σ = 2141879292. Its totient is φ = 610157600.

The previous prime is 1222123069. The next prime is 1222123117. The reversal of 1222123108 is 8013212221.

It can be written as a sum of positive squares in 2 ways, for example, as 1207006564 + 15116544 = 34742^2 + 3888^2 .

It is a super-2 number, since 2×1222123108² = 2987169782215159328, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 222943 + ... + 228358.

It is an arithmetic number, because the mean of its divisors is an integer number (178489941).

Almost surely, 2^1222123108 is an apocalyptic number.

It is an amenable number.

1222123108 is a deficient number, since it is larger than the sum of its proper divisors (919756184).

1222123108 is a wasteful number, since it uses less digits than its factorization.

1222123108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451982 (or 451980 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1222123108 is about 34958.8773847216. The cubic root of 1222123108 is about 1069.1492081019.

Adding to 1222123108 its reverse (8013212221), we get a palindrome (9235335329).

The spelling of 1222123108 in words is "one billion, two hundred twenty-two million, one hundred twenty-three thousand, one hundred eight".