5147202121 has 2 divisors, whose sum is σ = 5147202122. Its totient is φ = 5147202120.

The previous prime is 5147202091. The next prime is 5147202191. The reversal of 5147202121 is 1212027415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4441556025 + 705646096 = 66645^2 + 26564^2 .

It is a cyclic number.

It is not a de Polignac number, because 5147202121 - 2²⁵ = 5113647689 is a prime.

It is not a weakly prime, because it can be changed into another prime (5147202191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2573601060 + 2573601061.

It is an arithmetic number, because the mean of its divisors is an integer number (2573601061).

Almost surely, 2^5147202121 is an apocalyptic number.

It is an amenable number.

5147202121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5147202121 is an equidigital number, since it uses as much as digits as its factorization.

5147202121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 5147202121 is about 71744.0040769959. The cubic root of 5147202121 is about 1726.5947161018.

Adding to 5147202121 its reverse (1212027415), we get a palindrome (6359229536).

The spelling of 5147202121 in words is "five billion, one hundred forty-seven million, two hundred two thousand, one hundred twenty-one".