7202235121 has 2 divisors, whose sum is σ = 7202235122. Its totient is φ = 7202235120.

The previous prime is 7202235119. The next prime is 7202235143. The reversal of 7202235121 is 1215322027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7126736400 + 75498721 = 84420^2 + 8689^2 .

It is a cyclic number.

It is not a de Polignac number, because 7202235121 - 2¹ = 7202235119 is a prime.

Together with 7202235119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7202235191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3601117560 + 3601117561.

It is an arithmetic number, because the mean of its divisors is an integer number (3601117561).

Almost surely, 2^7202235121 is an apocalyptic number.

It is an amenable number.

7202235121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7202235121 is an equidigital number, since it uses as much as digits as its factorization.

7202235121 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 25.

The square root of 7202235121 is about 84865.9832971963. The cubic root of 7202235121 is about 1931.1785620199.

Adding to 7202235121 its reverse (1215322027), we get a palindrome (8417557148).

The spelling of 7202235121 in words is "seven billion, two hundred two million, two hundred thirty-five thousand, one hundred twenty-one".