105487221712 has 40 divisors (see below), whose sum is σ = 213774531840. Its totient is φ = 50330501760.

The previous prime is 105487221691. The next prime is 105487221751. The reversal of 105487221712 is 217122784501.

It is a super-2 number, since 2×105487221712² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185512 + ... + 495367.

It is an arithmetic number, because the mean of its divisors is an integer number (5344363296).

Almost surely, 2^105487221712 is an apocalyptic number.

It is an amenable number.

105487221712 is an abundant number, since it is smaller than the sum of its proper divisors (108287310128).

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

105487221712 is a wasteful number, since it uses less digits than its factorization.

105487221712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681331 (or 681325 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 40.

The spelling of 105487221712 in words is "one hundred five billion, four hundred eighty-seven million, two hundred twenty-one thousand, seven hundred twelve".