1222112205 has 80 divisors (see below), whose sum is σ = 2319134400. Its totient is φ = 613992960.

The previous prime is 1222112197. The next prime is 1222112207. The reversal of 1222112205 is 5022112221.

It is not a de Polignac number, because 1222112205 - 2³ = 1222112197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222112207) 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 79 ways as a sum of consecutive naturals, for example, 1854166 + ... + 1854824.

It is an arithmetic number, because the mean of its divisors is an integer number (28989180).

Almost surely, 2^1222112205 is an apocalyptic number.

1222112205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222112205 is a deficient number, since it is larger than the sum of its proper divisors (1097022195).

1222112205 is a wasteful number, since it uses less digits than its factorization.

1222112205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1222112205 is about 34958.7214440117. The cubic root of 1222112205 is about 1069.1460286708.

Adding to 1222112205 its reverse (5022112221), we get a palindrome (6244224426).

The spelling of 1222112205 in words is "one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred five".