4970221 has 2 divisors, whose sum is σ = 4970222. Its totient is φ = 4970220.

The previous prime is 4970209. The next prime is 4970227. The reversal of 4970221 is 1220794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4247721 + 722500 = 2061^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 4970221 - 2⁹ = 4969709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4970227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2485110 + 2485111.

It is an arithmetic number, because the mean of its divisors is an integer number (2485111).

Almost surely, 2^4970221 is an apocalyptic number.

It is an amenable number.

4970221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4970221 is an equidigital number, since it uses as much as digits as its factorization.

4970221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 4970221 is about 2229.3992464339. The cubic root of 4970221 is about 170.6574426540.

It can be divided in two parts, 4 and 970221, that added together give a square (970225 = 985²).

The spelling of 4970221 in words is "four million, nine hundred seventy thousand, two hundred twenty-one".