2665222171 has 2 divisors, whose sum is σ = 2665222172. Its totient is φ = 2665222170.

The previous prime is 2665222151. The next prime is 2665222193. The reversal of 2665222171 is 1712225662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2665222171 - 2¹⁵ = 2665189403 is a prime.

It is not a weakly prime, because it can be changed into another prime (2665222151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332611085 + 1332611086.

It is an arithmetic number, because the mean of its divisors is an integer number (1332611086).

Almost surely, 2^2665222171 is an apocalyptic number.

2665222171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665222171 is an equidigital number, since it uses as much as digits as its factorization.

2665222171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 2665222171 is about 51625.7897857263. The cubic root of 2665222171 is about 1386.4721141378.

The spelling of 2665222171 in words is "two billion, six hundred sixty-five million, two hundred twenty-two thousand, one hundred seventy-one".