1021110011109 has 12 divisors (see below), whose sum is σ = 1496950663936. Its totient is φ = 670579708392.

The previous prime is 1021110011093. The next prime is 1021110011161. The reversal of 1021110011109 is 9011100111201.

It is not a de Polignac number, because 1021110011109 - 2⁴ = 1021110011093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021110011091 and 1021110011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021110011309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 846690949 + ... + 846692154.

Almost surely, 2^{1021110011109} is an apocalyptic number.

It is an amenable number.

1021110011109 is a deficient number, since it is larger than the sum of its proper divisors (475840652827).

1021110011109 is a wasteful number, since it uses less digits than its factorization.

1021110011109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693383176 (or 1693383173 counting only the distinct ones).

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

The spelling of 1021110011109 in words is "one trillion, twenty-one billion, one hundred ten million, eleven thousand, one hundred nine".