7044221 has 2 divisors, whose sum is σ = 7044222. Its totient is φ = 7044220.

The previous prime is 7044211. The next prime is 7044229. The reversal of 7044221 is 1224407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5112121 + 1932100 = 2261^2 + 1390^2 .

It is a cyclic number.

It is not a de Polignac number, because 7044221 - 2⁶ = 7044157 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7044193 and 7044202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7044229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3522110 + 3522111.

It is an arithmetic number, because the mean of its divisors is an integer number (3522111).

Almost surely, 2^7044221 is an apocalyptic number.

It is an amenable number.

7044221 is a deficient number, since it is larger than the sum of its proper divisors (1).

7044221 is an equidigital number, since it uses as much as digits as its factorization.

7044221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 7044221 is about 2654.0951377070. The cubic root of 7044221 is about 191.6950907646.

Adding to 7044221 its reverse (1224407), we get a palindrome (8268628).

The spelling of 7044221 in words is "seven million, forty-four thousand, two hundred twenty-one".