101426220517 has 2 divisors, whose sum is σ = 101426220518. Its totient is φ = 101426220516.

The previous prime is 101426220503. The next prime is 101426220589. The reversal of 101426220517 is 715022624101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87229259716 + 14196960801 = 295346^2 + 119151^2 .

It is a cyclic number.

It is not a de Polignac number, because 101426220517 - 2¹⁵ = 101426187749 is a prime.

It is a super-2 number, since 2×101426220517² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101426200517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50713110258 + 50713110259.

It is an arithmetic number, because the mean of its divisors is an integer number (50713110259).

Almost surely, 2^101426220517 is an apocalyptic number.

It is an amenable number.

101426220517 is a deficient number, since it is larger than the sum of its proper divisors (1).

101426220517 is an equidigital number, since it uses as much as digits as its factorization.

101426220517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

Adding to 101426220517 its reverse (715022624101), we get a palindrome (816448844618).

The spelling of 101426220517 in words is "one hundred one billion, four hundred twenty-six million, two hundred twenty thousand, five hundred seventeen".