106211220517 has 2 divisors, whose sum is σ = 106211220518. Its totient is φ = 106211220516.

The previous prime is 106211220509. The next prime is 106211220539. The reversal of 106211220517 is 715022112601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58471592481 + 47739628036 = 241809^2 + 218494^2 .

It is a cyclic number.

It is not a de Polignac number, because 106211220517 - 2³ = 106211220509 is a prime.

It is a super-2 number, since 2×106211220517² (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 (106211220547) 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, 53105610258 + 53105610259.

It is an arithmetic number, because the mean of its divisors is an integer number (53105610259).

Almost surely, 2^106211220517 is an apocalyptic number.

It is an amenable number.

106211220517 is a deficient number, since it is larger than the sum of its proper divisors (1).

106211220517 is an equidigital number, since it uses as much as digits as its factorization.

106211220517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The spelling of 106211220517 in words is "one hundred six billion, two hundred eleven million, two hundred twenty thousand, five hundred seventeen".