105501121 has 4 divisors (see below), whose sum is σ = 115092144. Its totient is φ = 95910100.

The previous prime is 105501107. The next prime is 105501127. The reversal of 105501121 is 121105501.

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 not a de Polignac number, because 105501121 - 2¹⁵ = 105468353 is a prime.

It is a super-2 number, since 2×105501121² = 22260973064513282, 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 = 105501095 and 105501104.

It is not an unprimeable number, because it can be changed into a prime (105501127) 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, 4795495 + ... + 4795516.

It is an arithmetic number, because the mean of its divisors is an integer number (28773036).

Almost surely, 2^105501121 is an apocalyptic number.

105501121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105501121 is a deficient number, since it is larger than the sum of its proper divisors (9591023).

105501121 is an equidigital number, since it uses as much as digits as its factorization.

105501121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9591022.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 105501121 is about 10271.3738613683. The cubic root of 105501121 is about 472.5187264304.

Adding to 105501121 its reverse (121105501), we get a palindrome (226606622).

The spelling of 105501121 in words is "one hundred five million, five hundred one thousand, one hundred twenty-one".