7222482121 has 2 divisors, whose sum is σ = 7222482122. Its totient is φ = 7222482120.

The previous prime is 7222482119. The next prime is 7222482191. The reversal of 7222482121 is 1212842227.

7222482121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7221600400 + 881721 = 84980^2 + 939^2 .

It is an emirp because it is prime and its reverse (1212842227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7222482121 - 2¹ = 7222482119 is a prime.

Together with 7222482119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7222482101) 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, 3611241060 + 3611241061.

It is an arithmetic number, because the mean of its divisors is an integer number (3611241061).

Almost surely, 2^7222482121 is an apocalyptic number.

It is an amenable number.

7222482121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7222482121 is an equidigital number, since it uses as much as digits as its factorization.

7222482121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7168, while the sum is 31.

The square root of 7222482121 is about 84985.1876564381. The cubic root of 7222482121 is about 1932.9865188011.

The spelling of 7222482121 in words is "seven billion, two hundred twenty-two million, four hundred eighty-two thousand, one hundred twenty-one".