105220170105005 has 4 divisors (see below), whose sum is σ = 126264204126012. Its totient is φ = 84176136084000.

The previous prime is 105220170104983. The next prime is 105220170105019. The reversal of 105220170105005 is 500501071022501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59257926138889 + 45962243966116 = 7697917^2 + 6779546^2 .

It is not a de Polignac number, because 105220170105005 - 2¹⁶ = 105220170039469 is a prime.

It is a super-2 number, since 2×105220170105005² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10522017010496 + ... + 10522017010505.

It is an arithmetic number, because the mean of its divisors is an integer number (31566051031503).

Almost surely, 2^{105220170105005} is an apocalyptic number.

It is an amenable number.

105220170105005 is a deficient number, since it is larger than the sum of its proper divisors (21044034021007).

105220170105005 is an equidigital number, since it uses as much as digits as its factorization.

105220170105005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21044034021006.

The product of its (nonzero) digits is 3500, while the sum is 29.

The spelling of 105220170105005 in words is "one hundred five trillion, two hundred twenty billion, one hundred seventy million, one hundred five thousand, five".