101000221221247 has 2 divisors, whose sum is σ = 101000221221248. Its totient is φ = 101000221221246.

The previous prime is 101000221221187. The next prime is 101000221221257. The reversal of 101000221221247 is 742122122000101.

It is a strong prime.

It is an emirp because it is prime and its reverse (742122122000101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101000221221247 - 2³¹ = 100998073737599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101000221221257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500110610623 + 50500110610624.

It is an arithmetic number, because the mean of its divisors is an integer number (50500110610624).

Almost surely, 2^{101000221221247} is an apocalyptic number.

101000221221247 is a deficient number, since it is larger than the sum of its proper divisors (1).

101000221221247 is an equidigital number, since it uses as much as digits as its factorization.

101000221221247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 101000221221247 its reverse (742122122000101), we get a palindrome (843122343221348).

The spelling of 101000221221247 in words is "one hundred one trillion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred forty-seven".