3106169607221 has 2 divisors, whose sum is σ = 3106169607222. Its totient is φ = 3106169607220.

The previous prime is 3106169607103. The next prime is 3106169607241. The reversal of 3106169607221 is 1227069616013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2639016495025 + 467153112196 = 1624505^2 + 683486^2 .

It is a cyclic number.

It is not a de Polignac number, because 3106169607221 - 2¹⁴ = 3106169590837 is a prime.

It is a super-2 number, since 2×3106169607221² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3106169607241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1553084803610 + 1553084803611.

It is an arithmetic number, because the mean of its divisors is an integer number (1553084803611).

Almost surely, 2^{3106169607221} is an apocalyptic number.

It is an amenable number.

3106169607221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3106169607221 is an equidigital number, since it uses as much as digits as its factorization.

3106169607221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 3106169607221 in words is "three trillion, one hundred six billion, one hundred sixty-nine million, six hundred seven thousand, two hundred twenty-one".