6222535316021 has 2 divisors, whose sum is σ = 6222535316022. Its totient is φ = 6222535316020.

The previous prime is 6222535315991. The next prime is 6222535316033. The reversal of 6222535316021 is 1206135352226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4403341315396 + 1819194000625 = 2098414^2 + 1348775^2 .

It is a cyclic number.

It is not a de Polignac number, because 6222535316021 - 2³⁴ = 6205355446837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6222535316051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3111267658010 + 3111267658011.

It is an arithmetic number, because the mean of its divisors is an integer number (3111267658011).

Almost surely, 2^{6222535316021} is an apocalyptic number.

It is an amenable number.

6222535316021 is a deficient number, since it is larger than the sum of its proper divisors (1).

6222535316021 is an equidigital number, since it uses as much as digits as its factorization.

6222535316021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 6222535316021 in words is "six trillion, two hundred twenty-two billion, five hundred thirty-five million, three hundred sixteen thousand, twenty-one".