11131222109 has 8 divisors (see below), whose sum is σ = 12723798720. Its totient is φ = 9539246016.

The previous prime is 11131222097. The next prime is 11131222129. The reversal of 11131222109 is 90122213111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11131222109 - 2²⁴ = 11114444893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131222129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109679 + ... + 185180.

It is an arithmetic number, because the mean of its divisors is an integer number (1590474840).

Almost surely, 2^11131222109 is an apocalyptic number.

It is an amenable number.

11131222109 is a deficient number, since it is larger than the sum of its proper divisors (1592576611).

11131222109 is an equidigital number, since it uses as much as digits as its factorization.

11131222109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300259.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 11131222109 in words is "eleven billion, one hundred thirty-one million, two hundred twenty-two thousand, one hundred nine".