2211170231 has 2 divisors, whose sum is σ = 2211170232. Its totient is φ = 2211170230.

The previous prime is 2211170207. The next prime is 2211170249. The reversal of 2211170231 is 1320711122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2211170231 - 2⁶ = 2211170167 is a prime.

It is a super-2 number, since 2×2211170231² = 9778547580921186722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211170831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105585115 + 1105585116.

It is an arithmetic number, because the mean of its divisors is an integer number (1105585116).

Almost surely, 2^2211170231 is an apocalyptic number.

2211170231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211170231 is an equidigital number, since it uses as much as digits as its factorization.

2211170231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 2211170231 is about 47023.0818960221. The cubic root of 2211170231 is about 1302.7889299015.

Adding to 2211170231 its reverse (1320711122), we get a palindrome (3531881353).

The spelling of 2211170231 in words is "two billion, two hundred eleven million, one hundred seventy thousand, two hundred thirty-one".