105220117 has 4 divisors (see below), whose sum is σ = 106023456. Its totient is φ = 104416780.

The previous prime is 105220111. The next prime is 105220127. The reversal of 105220117 is 711022501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105220117 - 2²³ = 96831509 is a prime.

It is a super-2 number, since 2×105220117² = 22142546042987378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105220094 and 105220103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105220111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401473 + ... + 401734.

It is an arithmetic number, because the mean of its divisors is an integer number (26505864).

Almost surely, 2^105220117 is an apocalyptic number.

It is an amenable number.

105220117 is a deficient number, since it is larger than the sum of its proper divisors (803339).

105220117 is an equidigital number, since it uses as much as digits as its factorization.

105220117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803338.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 105220117 is about 10257.6857526442. The cubic root of 105220117 is about 472.0988329019.

Adding to 105220117 its reverse (711022501), we get a palindrome (816242618).

The spelling of 105220117 in words is "one hundred five million, two hundred twenty thousand, one hundred seventeen".