1122009999 has 16 divisors (see below), whose sum is σ = 1632904704. Its totient is φ = 679635200.

The previous prime is 1122009953. The next prime is 1122010009. The reversal of 1122009999 is 9999002211.

It is a cyclic number.

It is not a de Polignac number, because 1122009999 - 2⁷ = 1122009871 is a prime.

It is a super-4 number, since 4×1122009999⁴ (a number of 37 digits) contains 4444 as substring.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1122009999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122009949) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 59839 + ... + 76319.

It is an arithmetic number, because the mean of its divisors is an integer number (102056544).

Almost surely, 2^1122009999 is an apocalyptic number.

1122009999 is a deficient number, since it is larger than the sum of its proper divisors (510894705).

1122009999 is a wasteful number, since it uses less digits than its factorization.

1122009999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18558.

The product of its (nonzero) digits is 26244, while the sum is 42.

The square root of 1122009999 is about 33496.4177039874. The cubic root of 1122009999 is about 1039.1196936241.

The spelling of 1122009999 in words is "one billion, one hundred twenty-two million, nine thousand, nine hundred ninety-nine".