7020282221 has 2 divisors, whose sum is σ = 7020282222. Its totient is φ = 7020282220.

The previous prime is 7020282187. The next prime is 7020282223. The reversal of 7020282221 is 1222820207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6023932996 + 996349225 = 77614^2 + 31565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7020282221 is a prime.

It is a Sophie Germain prime.

Together with 7020282223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7020282223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3510141110 + 3510141111.

It is an arithmetic number, because the mean of its divisors is an integer number (3510141111).

Almost surely, 2^7020282221 is an apocalyptic number.

It is an amenable number.

7020282221 is a deficient number, since it is larger than the sum of its proper divisors (1).

7020282221 is an equidigital number, since it uses as much as digits as its factorization.

7020282221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 7020282221 is about 83787.1244344858. The cubic root of 7020282221 is about 1914.7769485270.

The spelling of 7020282221 in words is "seven billion, twenty million, two hundred eighty-two thousand, two hundred twenty-one".