2201671 has 2 divisors, whose sum is σ = 2201672. Its totient is φ = 2201670.

The previous prime is 2201669. The next prime is 2201677. The reversal of 2201671 is 1761022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2201671 - 2¹ = 2201669 is a prime.

Together with 2201669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100835 + 1100836.

It is an arithmetic number, because the mean of its divisors is an integer number (1100836).

2^2201671 is an apocalyptic number.

2201671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201671 is an equidigital number, since it uses as much as digits as its factorization.

2201671 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 19.

The square root of 2201671 is about 1483.8028844830. The cubic root of 2201671 is about 130.0920649625.

Adding to 2201671 its reverse (1761022), we get a palindrome (3962693).

It can be divided in two parts, 220 and 1671, that added together give a triangular number (1891 = T₆₁).

The spelling of 2201671 in words is "two million, two hundred one thousand, six hundred seventy-one".