11216171001 has 32 divisors (see below), whose sum is σ = 17472870400. Its totient is φ = 6397202448.

The previous prime is 11216170981. The next prime is 11216171011. The reversal of 11216171001 is 10017161211.

It is not a de Polignac number, because 11216171001 - 2¹⁰ = 11216169977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11216171011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 552900 + ... + 572826.

It is an arithmetic number, because the mean of its divisors is an integer number (546027200).

Almost surely, 2^11216171001 is an apocalyptic number.

It is an amenable number.

11216171001 is a deficient number, since it is larger than the sum of its proper divisors (6256699399).

11216171001 is an equidigital number, since it uses as much as digits as its factorization.

11216171001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20498 (or 20484 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 21.

The spelling of 11216171001 in words is "eleven billion, two hundred sixteen million, one hundred seventy-one thousand, one".