1111200022109 has 4 divisors (see below), whose sum is σ = 1132166060316. Its totient is φ = 1090233983904.

The previous prime is 1111200021979. The next prime is 1111200022151. The reversal of 1111200022109 is 9012200021111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 998844334084 + 112355688025 = 999422^2 + 335195^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111200022109 - 2¹² = 1111200018013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111200022409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10483019024 + ... + 10483019129.

It is an arithmetic number, because the mean of its divisors is an integer number (283041515079).

Almost surely, 2^{1111200022109} is an apocalyptic number.

It is an amenable number.

1111200022109 is a deficient number, since it is larger than the sum of its proper divisors (20966038207).

1111200022109 is an equidigital number, since it uses as much as digits as its factorization.

1111200022109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20966038206.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 1111200022109 in words is "one trillion, one hundred eleven billion, two hundred million, twenty-two thousand, one hundred nine".