11112102221209 has 16 divisors (see below), whose sum is σ = 12650184668160. Its totient is φ = 9662059657360.

The previous prime is 11112102221201. The next prime is 11112102221243. The reversal of 11112102221209 is 90212220121111.

It is not a de Polignac number, because 11112102221209 - 2³ = 11112102221201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112102221201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2410212 + ... + 5294650.

It is an arithmetic number, because the mean of its divisors is an integer number (790636541760).

Almost surely, 2^{11112102221209} is an apocalyptic number.

It is an amenable number.

11112102221209 is a deficient number, since it is larger than the sum of its proper divisors (1538082446951).

11112102221209 is a wasteful number, since it uses less digits than its factorization.

11112102221209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899700.

The product of its (nonzero) digits is 288, while the sum is 25.

It can be divided in two parts, 11112102 and 221209, that added together give a palindrome (11333311).

The spelling of 11112102221209 in words is "eleven trillion, one hundred twelve billion, one hundred two million, two hundred twenty-one thousand, two hundred nine".