4712221 has 2 divisors, whose sum is σ = 4712222. Its totient is φ = 4712220.

The previous prime is 4712207. The next prime is 4712231. The reversal of 4712221 is 1222174.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4575321 + 136900 = 2139^2 + 370^2 .

It is a cyclic number.

It is not a de Polignac number, because 4712221 - 2²¹ = 2615069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4712231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2356110 + 2356111.

It is an arithmetic number, because the mean of its divisors is an integer number (2356111).

Almost surely, 2^4712221 is an apocalyptic number.

It is an amenable number.

4712221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4712221 is an equidigital number, since it uses as much as digits as its factorization.

4712221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224, while the sum is 19.

The square root of 4712221 is about 2170.7650725032. The cubic root of 4712221 is about 167.6519272040.

Adding to 4712221 its reverse (1222174), we get a palindrome (5934395).

The spelling of 4712221 in words is "four million, seven hundred twelve thousand, two hundred twenty-one".