101001124125221 has 2 divisors, whose sum is σ = 101001124125222. Its totient is φ = 101001124125220.

The previous prime is 101001124125169. The next prime is 101001124125247. The reversal of 101001124125221 is 122521421100101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85124796216100 + 15876327909121 = 9226310^2 + 3984511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101001124125221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101001124122221) 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, 50500562062610 + 50500562062611.

It is an arithmetic number, because the mean of its divisors is an integer number (50500562062611).

Almost surely, 2^{101001124125221} is an apocalyptic number.

It is an amenable number.

101001124125221 is a deficient number, since it is larger than the sum of its proper divisors (1).

101001124125221 is an equidigital number, since it uses as much as digits as its factorization.

101001124125221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 101001124125221 its reverse (122521421100101), we get a palindrome (223522545225322).

The spelling of 101001124125221 in words is "one hundred one trillion, one billion, one hundred twenty-four million, one hundred twenty-five thousand, two hundred twenty-one".