7045224421 has 2 divisors, whose sum is σ = 7045224422. Its totient is φ = 7045224420.

The previous prime is 7045224391. The next prime is 7045224443. The reversal of 7045224421 is 1244225407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6957895396 + 87329025 = 83414^2 + 9345^2 .

It is a cyclic number.

It is not a de Polignac number, because 7045224421 - 2⁷ = 7045224293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7045224481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3522612210 + 3522612211.

It is an arithmetic number, because the mean of its divisors is an integer number (3522612211).

Almost surely, 2^7045224421 is an apocalyptic number.

It is an amenable number.

7045224421 is a deficient number, since it is larger than the sum of its proper divisors (1).

7045224421 is an equidigital number, since it uses as much as digits as its factorization.

7045224421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 7045224421 is about 83935.8351420893. The cubic root of 7045224421 is about 1917.0419239776.

Adding to 7045224421 its reverse (1244225407), we get a palindrome (8289449828).

The spelling of 7045224421 in words is "seven billion, forty-five million, two hundred twenty-four thousand, four hundred twenty-one".