7202230121 has 2 divisors, whose sum is σ = 7202230122. Its totient is φ = 7202230120.

The previous prime is 7202230099. The next prime is 7202230157. The reversal of 7202230121 is 1210322027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4564894096 + 2637336025 = 67564^2 + 51355^2 .

It is an emirp because it is prime and its reverse (1210322027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7202230121 - 2¹⁸ = 7201967977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7202230093 and 7202230102.

It is not a weakly prime, because it can be changed into another prime (7202235121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3601115060 + 3601115061.

It is an arithmetic number, because the mean of its divisors is an integer number (3601115061).

Almost surely, 2^7202230121 is an apocalyptic number.

It is an amenable number.

7202230121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7202230121 is an equidigital number, since it uses as much as digits as its factorization.

7202230121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 7202230121 is about 84865.9538389807. The cubic root of 7202230121 is about 1931.1781151265.

Adding to 7202230121 its reverse (1210322027), we get a palindrome (8412552148).

The spelling of 7202230121 in words is "seven billion, two hundred two million, two hundred thirty thousand, one hundred twenty-one".