105550221069 has 20 divisors (see below), whose sum is σ = 157698409440. Its totient is φ = 70355825640.

The previous prime is 105550221037. The next prime is 105550221121. The reversal of 105550221069 is 960122055501.

105550221069 is a `hidden beast` number, since 10 + 5 + 550 + 22 + 10 + 69 = 666.

It is not a de Polignac number, because 105550221069 - 2⁵ = 105550221037 is a prime.

It is a super-2 number, since 2×105550221069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105550225069) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 437704 + ... + 634574.

It is an arithmetic number, because the mean of its divisors is an integer number (7884920472).

Almost surely, 2^105550221069 is an apocalyptic number.

It is an amenable number.

105550221069 is a deficient number, since it is larger than the sum of its proper divisors (52148188371).

105550221069 is an equidigital number, since it uses as much as digits as its factorization.

105550221069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203502 (or 203493 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 105550221069 in words is "one hundred five billion, five hundred fifty million, two hundred twenty-one thousand, sixty-nine".