17213202081 has 32 divisors (see below), whose sum is σ = 25646208000. Its totient is φ = 11410274304.

The previous prime is 17213202079. The next prime is 17213202103. The reversal of 17213202081 is 18020231271.

It is not a de Polignac number, because 17213202081 - 2¹ = 17213202079 is a prime.

It is a super-2 number, since 2×17213202081² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (17213202031) 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, 8482575 + ... + 8484603.

It is an arithmetic number, because the mean of its divisors is an integer number (801444000).

Almost surely, 2^17213202081 is an apocalyptic number.

It is an amenable number.

17213202081 is a deficient number, since it is larger than the sum of its proper divisors (8433005919).

17213202081 is a wasteful number, since it uses less digits than its factorization.

17213202081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670 (or 3664 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The spelling of 17213202081 in words is "seventeen billion, two hundred thirteen million, two hundred two thousand, eighty-one".