6225136226021 has 2 divisors, whose sum is σ = 6225136226022. Its totient is φ = 6225136226020.

The previous prime is 6225136226017. The next prime is 6225136226047. The reversal of 6225136226021 is 1206226315226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5307314745121 + 917821480900 = 2303761^2 + 958030^2 .

It is a cyclic number.

It is not a de Polignac number, because 6225136226021 - 2² = 6225136226017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6225136226051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3112568113010 + 3112568113011.

It is an arithmetic number, because the mean of its divisors is an integer number (3112568113011).

Almost surely, 2^{6225136226021} is an apocalyptic number.

It is an amenable number.

6225136226021 is a deficient number, since it is larger than the sum of its proper divisors (1).

6225136226021 is an equidigital number, since it uses as much as digits as its factorization.

6225136226021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 6225136226021 in words is "six trillion, two hundred twenty-five billion, one hundred thirty-six million, two hundred twenty-six thousand, twenty-one".