2228071 has 4 divisors (see below), whose sum is σ = 2359152. Its totient is φ = 2096992.

The previous prime is 2228053. The next prime is 2228077. The reversal of 2228071 is 1708222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1708222 = 2 ⋅854111.

It is a cyclic number.

It is not a de Polignac number, because 2228071 - 2⁷ = 2227943 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65515 + ... + 65548.

It is an arithmetic number, because the mean of its divisors is an integer number (589788).

2^2228071 is an apocalyptic number.

2228071 is a deficient number, since it is larger than the sum of its proper divisors (131081).

2228071 is a wasteful number, since it uses less digits than its factorization.

2228071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131080.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2228071 is about 1492.6724356000. The cubic root of 2228071 is about 130.6099736994.

The spelling of 2228071 in words is "two million, two hundred twenty-eight thousand, seventy-one".