105500121501 has 8 divisors (see below), whose sum is σ = 140673821440. Its totient is φ = 70329917952.

The previous prime is 105500121497. The next prime is 105500121511. The reversal of 105500121501 is 105121005501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105500121501 - 2² = 105500121497 is a prime.

It is a super-2 number, since 2×105500121501² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105500121511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802861 + ... + 924978.

It is an arithmetic number, because the mean of its divisors is an integer number (17584227680).

Almost surely, 2^105500121501 is an apocalyptic number.

It is an amenable number.

105500121501 is a deficient number, since it is larger than the sum of its proper divisors (35173699939).

105500121501 is a wasteful number, since it uses less digits than its factorization.

105500121501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748195.

The product of its (nonzero) digits is 250, while the sum is 21.

The spelling of 105500121501 in words is "one hundred five billion, five hundred million, one hundred twenty-one thousand, five hundred one".