10164170221 has 2 divisors, whose sum is σ = 10164170222. Its totient is φ = 10164170220.

The previous prime is 10164170197. The next prime is 10164170287. The reversal of 10164170221 is 12207146101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6728920900 + 3435249321 = 82030^2 + 58611^2 .

It is an emirp because it is prime and its reverse (12207146101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10164170221 - 2¹¹ = 10164168173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10164120221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5082085110 + 5082085111.

It is an arithmetic number, because the mean of its divisors is an integer number (5082085111).

Almost surely, 2^10164170221 is an apocalyptic number.

It is an amenable number.

10164170221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10164170221 is an equidigital number, since it uses as much as digits as its factorization.

10164170221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

The spelling of 10164170221 in words is "ten billion, one hundred sixty-four million, one hundred seventy thousand, two hundred twenty-one".