1222112004 has 12 divisors (see below), whose sum is σ = 2851594704. Its totient is φ = 407370664.

The previous prime is 1222111991. The next prime is 1222112057. The reversal of 1222112004 is 4002112221.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50921322 + ... + 50921345.

It is an arithmetic number, because the mean of its divisors is an integer number (237632892).

Almost surely, 2^1222112004 is an apocalyptic number.

It is an amenable number.

1222112004 is an abundant number, since it is smaller than the sum of its proper divisors (1629482700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222112004 is a wasteful number, since it uses less digits than its factorization.

1222112004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101842674 (or 101842672 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1222112004 is about 34958.7185691924. The cubic root of 1222112004 is about 1069.1459700569.

Adding to 1222112004 its reverse (4002112221), we get a palindrome (5224224225).

The spelling of 1222112004 in words is "one billion, two hundred twenty-two million, one hundred twelve thousand, four".