4612221 has 10 divisors (see below), whose sum is σ = 6889982. Its totient is φ = 3074760.

The previous prime is 4612217. The next prime is 4612229. The reversal of 4612221 is 1222164.

It can be written as a sum of positive squares in only one way, i.e., 3956121 + 656100 = 1989^2 + 810^2 .

It is not a de Polignac number, because 4612221 - 2² = 4612217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4612194 and 4612203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4612229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 28390 + ... + 28551.

Almost surely, 2^4612221 is an apocalyptic number.

It is an amenable number.

4612221 is a deficient number, since it is larger than the sum of its proper divisors (2277761).

4612221 is an equidigital number, since it uses as much as digits as its factorization.

4612221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56953 (or 56944 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 4612221 is about 2147.6082044917. The cubic root of 4612221 is about 166.4575007186.

Adding to 4612221 its reverse (1222164), we get a palindrome (5834385).

The spelling of 4612221 in words is "four million, six hundred twelve thousand, two hundred twenty-one".