11201110001001 has 32 divisors (see below), whose sum is σ = 16952525107200. Its totient is φ = 7306274898000.

The previous prime is 11201110000967. The next prime is 11201110001041. The reversal of 11201110001001 is 10010001110211.

It is not a de Polignac number, because 11201110001001 - 2³⁰ = 11200036259177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11201110001041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2767980 + ... + 5483058.

It is an arithmetic number, because the mean of its divisors is an integer number (529766409600).

Almost surely, 2^{11201110001001} is an apocalyptic number.

It is an amenable number.

11201110001001 is a deficient number, since it is larger than the sum of its proper divisors (5751415106199).

11201110001001 is a wasteful number, since it uses less digits than its factorization.

11201110001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718386 (or 2718380 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11201110001001 its reverse (10010001110211), we get a palindrome (21211111111212).

The spelling of 11201110001001 in words is "eleven trillion, two hundred one billion, one hundred ten million, one thousand, one".