7221714881 has 2 divisors, whose sum is σ = 7221714882. Its totient is φ = 7221714880.

The previous prime is 7221714859. The next prime is 7221714887. The reversal of 7221714881 is 1884171227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5732912656 + 1488802225 = 75716^2 + 38585^2 .

It is a cyclic number.

It is not a de Polignac number, because 7221714881 - 2⁶ = 7221714817 is a prime.

It is a super-2 number, since 2×7221714881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7221714887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610857440 + 3610857441.

It is an arithmetic number, because the mean of its divisors is an integer number (3610857441).

Almost surely, 2^7221714881 is an apocalyptic number.

It is an amenable number.

7221714881 is a deficient number, since it is larger than the sum of its proper divisors (1).

7221714881 is an equidigital number, since it uses as much as digits as its factorization.

7221714881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50176, while the sum is 41.

The square root of 7221714881 is about 84980.6735734661. The cubic root of 7221714881 is about 1932.9180697061.

The spelling of 7221714881 in words is "seven billion, two hundred twenty-one million, seven hundred fourteen thousand, eight hundred eighty-one".