6220305121 has 2 divisors, whose sum is σ = 6220305122. Its totient is φ = 6220305120.

The previous prime is 6220305097. The next prime is 6220305163. The reversal of 6220305121 is 1215030226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3750215121 + 2470090000 = 61239^2 + 49700^2 .

It is a cyclic number.

It is not a de Polignac number, because 6220305121 - 2⁵ = 6220305089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6220305092 and 6220305101.

It is not a weakly prime, because it can be changed into another prime (6220305181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110152560 + 3110152561.

It is an arithmetic number, because the mean of its divisors is an integer number (3110152561).

Almost surely, 2^6220305121 is an apocalyptic number.

It is an amenable number.

6220305121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6220305121 is an equidigital number, since it uses as much as digits as its factorization.

6220305121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 6220305121 is about 78868.9109915941. The cubic root of 6220305121 is about 1839.0938671038.

Adding to 6220305121 its reverse (1215030226), we get a palindrome (7435335347).

The spelling of 6220305121 in words is "six billion, two hundred twenty million, three hundred five thousand, one hundred twenty-one".