7006522121 has 2 divisors, whose sum is σ = 7006522122. Its totient is φ = 7006522120.

The previous prime is 7006522091. The next prime is 7006522129. The reversal of 7006522121 is 1212256007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5656694521 + 1349827600 = 75211^2 + 36740^2 .

It is a cyclic number.

It is not a de Polignac number, because 7006522121 - 2¹⁰ = 7006521097 is a prime.

It is not a weakly prime, because it can be changed into another prime (7006522129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3503261060 + 3503261061.

It is an arithmetic number, because the mean of its divisors is an integer number (3503261061).

Almost surely, 2^7006522121 is an apocalyptic number.

It is an amenable number.

7006522121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7006522121 is an equidigital number, since it uses as much as digits as its factorization.

7006522121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 7006522121 is about 83704.9707066432. The cubic root of 7006522121 is about 1913.5251111423.

Adding to 7006522121 its reverse (1212256007), we get a palindrome (8218778128).

The spelling of 7006522121 in words is "seven billion, six million, five hundred twenty-two thousand, one hundred twenty-one".