2230221 has 16 divisors (see below), whose sum is σ = 3456128. Its totient is φ = 1252800.

The previous prime is 2230219. The next prime is 2230243. The reversal of 2230221 is 1220322.

It is not a de Polignac number, because 2230221 - 2¹ = 2230219 is a prime.

It is a Duffinian number.

2230221 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2230197 and 2230206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2230021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (216008).

2^2230221 is an apocalyptic number.

2230221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2230221 is a deficient number, since it is larger than the sum of its proper divisors (1225907).

2230221 is a wasteful number, since it uses less digits than its factorization.

2230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2230221 is about 1493.3924467467. The cubic root of 2230221 is about 130.6519713389.

Adding to 2230221 its reverse (1220322), we get a palindrome (3450543).

The spelling of 2230221 in words is "two million, two hundred thirty thousand, two hundred twenty-one".