105522421344 has 144 divisors (see below), whose sum is σ = 282908506608. Its totient is φ = 34438569984.

The previous prime is 105522421327. The next prime is 105522421351. The reversal of 105522421344 is 443124225501.

It is a super-2 number, since 2×105522421344² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112616844 + ... + 112617780.

It is an arithmetic number, because the mean of its divisors is an integer number (1964642407).

Almost surely, 2^105522421344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105522421344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141454253304).

105522421344 is an abundant number, since it is smaller than the sum of its proper divisors (177386085264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105522421344 is an equidigital number, since it uses as much as digits as its factorization.

105522421344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405 (or 1338 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 105522421344 its reverse (443124225501), we get a palindrome (548646646845).

The spelling of 105522421344 in words is "one hundred five billion, five hundred twenty-two million, four hundred twenty-one thousand, three hundred forty-four".