501225005101 has 2 divisors, whose sum is σ = 501225005102. Its totient is φ = 501225005100.

The previous prime is 501225005011. The next prime is 501225005129. The reversal of 501225005101 is 101500522105.

It is a happy number.

Together with previous prime (501225005011) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417799347876 + 83425657225 = 646374^2 + 288835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501225005101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501225005131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250612502550 + 250612502551.

It is an arithmetic number, because the mean of its divisors is an integer number (250612502551).

Almost surely, 2^501225005101 is an apocalyptic number.

It is an amenable number.

501225005101 is a deficient number, since it is larger than the sum of its proper divisors (1).

501225005101 is an equidigital number, since it uses as much as digits as its factorization.

501225005101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 500, while the sum is 22.

Adding to 501225005101 its reverse (101500522105), we get a palindrome (602725527206).

The spelling of 501225005101 in words is "five hundred one billion, two hundred twenty-five million, five thousand, one hundred one".