1011109991922 has 24 divisors (see below), whose sum is σ = 2210836836780. Its totient is φ = 333944583840.

The previous prime is 1011109991921. The next prime is 1011109991963. The reversal of 1011109991922 is 2291999011101.

It can be written as a sum of positive squares in 2 ways, for example, as 1001762776161 + 9347215761 = 1000881^2 + 96681^2 .

It is not an unprimeable number, because it can be changed into a prime (1011109991921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257671329 + ... + 257675252.

Almost surely, 2^{1011109991922} is an apocalyptic number.

1011109991922 is an abundant number, since it is smaller than the sum of its proper divisors (1199726844858).

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

1011109991922 is a wasteful number, since it uses less digits than its factorization.

1011109991922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515346698 (or 515346695 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 45.

The spelling of 1011109991922 in words is "one trillion, eleven billion, one hundred nine million, nine hundred ninety-one thousand, nine hundred twenty-two".