11201211209 has 8 divisors (see below), whose sum is σ = 12375763200. Its totient is φ = 10083954496.

The previous prime is 11201211017. The next prime is 11201211211. The reversal of 11201211209 is 90211210211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11201211209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201211289) 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, 14323409 + ... + 14324190.

It is an arithmetic number, because the mean of its divisors is an integer number (1546970400).

Almost surely, 2^11201211209 is an apocalyptic number.

It is an amenable number.

11201211209 is a deficient number, since it is larger than the sum of its proper divisors (1174551991).

11201211209 is a wasteful number, since it uses less digits than its factorization.

11201211209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28647639.

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

The spelling of 11201211209 in words is "eleven billion, two hundred one million, two hundred eleven thousand, two hundred nine".