1099145189122 has 16 divisors (see below), whose sum is σ = 1679878387512. Its totient is φ = 539186377600.

The previous prime is 1099145189101. The next prime is 1099145189179. The reversal of 1099145189122 is 2219815419901.

It can be written as a sum of positive squares in 4 ways, for example, as 725101637841 + 374043551281 = 851529^2 + 611591^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1099145189122.

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, 3650088 + ... + 3939724.

Almost surely, 2^{1099145189122} is an apocalyptic number.

1099145189122 is a deficient number, since it is larger than the sum of its proper divisors (580733198390).

1099145189122 is a wasteful number, since it uses less digits than its factorization.

1099145189122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325493.

The product of its (nonzero) digits is 466560, while the sum is 52.

The spelling of 1099145189122 in words is "one trillion, ninety-nine billion, one hundred forty-five million, one hundred eighty-nine thousand, one hundred twenty-two".