207071670221 has 16 divisors (see below), whose sum is σ = 234824399040. Its totient is φ = 181015585920.

The previous prime is 207071670203. The next prime is 207071670251. The reversal of 207071670221 is 122076170702.

It is not a de Polignac number, because 207071670221 - 2³⁴ = 189891801037 is a prime.

It is a super-2 number, since 2×207071670221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207071670251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515606 + ... + 824616.

It is an arithmetic number, because the mean of its divisors is an integer number (14676524940).

Almost surely, 2^207071670221 is an apocalyptic number.

It is an amenable number.

207071670221 is a deficient number, since it is larger than the sum of its proper divisors (27752728819).

207071670221 is a wasteful number, since it uses less digits than its factorization.

207071670221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311756.

The product of its (nonzero) digits is 16464, while the sum is 35.

The spelling of 207071670221 in words is "two hundred seven billion, seventy-one million, six hundred seventy thousand, two hundred twenty-one".