10570166221 has 2 divisors, whose sum is σ = 10570166222. Its totient is φ = 10570166220.

The previous prime is 10570166207. The next prime is 10570166227. The reversal of 10570166221 is 12266107501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9038304900 + 1531861321 = 95070^2 + 39139^2 .

It is a cyclic number.

It is not a de Polignac number, because 10570166221 - 2¹¹ = 10570164173 is a prime.

It is a super-2 number, since 2×10570166221² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10570166227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5285083110 + 5285083111.

It is an arithmetic number, because the mean of its divisors is an integer number (5285083111).

Almost surely, 2^10570166221 is an apocalyptic number.

It is an amenable number.

10570166221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10570166221 is an equidigital number, since it uses as much as digits as its factorization.

10570166221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 10570166221 in words is "ten billion, five hundred seventy million, one hundred sixty-six thousand, two hundred twenty-one".