11121111012209 has 8 divisors (see below), whose sum is σ = 12213544737600. Its totient is φ = 10042247892400.

The previous prime is 11121111012203. The next prime is 11121111012211. The reversal of 11121111012209 is 90221011112111.

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 11121111012209 - 2²⁰ = 11121109963633 is a prime.

It is a super-2 number, since 2×11121111012209² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121111012203) 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, 3392649677 + ... + 3392652954.

It is an arithmetic number, because the mean of its divisors is an integer number (1526693092200).

Almost surely, 2^{11121111012209} is an apocalyptic number.

It is an amenable number.

11121111012209 is a deficient number, since it is larger than the sum of its proper divisors (1092433725391).

11121111012209 is a wasteful number, since it uses less digits than its factorization.

11121111012209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6785302791.

The product of its (nonzero) digits is 72, while the sum is 23.

The spelling of 11121111012209 in words is "eleven trillion, one hundred twenty-one billion, one hundred eleven million, twelve thousand, two hundred nine".