11201121121209 has 8 divisors (see below), whose sum is σ = 14951780296992. Its totient is φ = 7458938013120.

The previous prime is 11201121121199. The next prime is 11201121121213. The reversal of 11201121121209 is 90212112110211.

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

It is not a de Polignac number, because 11201121121209 - 2²⁰ = 11201120072633 is a prime.

It is a super-2 number, since 2×11201121121209² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11201121121259) 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, 2119013839 + ... + 2119019124.

It is an arithmetic number, because the mean of its divisors is an integer number (1868972537124).

Almost surely, 2^{11201121121209} is an apocalyptic number.

It is an amenable number.

11201121121209 is a deficient number, since it is larger than the sum of its proper divisors (3750659175783).

11201121121209 is an equidigital number, since it uses as much as digits as its factorization.

11201121121209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238033847.

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 11201121121209 in words is "eleven trillion, two hundred one billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred nine".