4521112105220 has 24 divisors (see below), whose sum is σ = 9750939082584. Its totient is φ = 1759567954176.

The previous prime is 4521112105219. The next prime is 4521112105241. The reversal of 4521112105220 is 225012111254.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 564641033476 + 3956471071744 = 751426^2 + 1989088^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4521112105220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3054804737 + ... + 3054806216.

It is an arithmetic number, because the mean of its divisors is an integer number (406289128441).

Almost surely, 2^{4521112105220} is an apocalyptic number.

It is an amenable number.

4521112105220 is an abundant number, since it is smaller than the sum of its proper divisors (5229826977364).

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

4521112105220 is a wasteful number, since it uses less digits than its factorization.

4521112105220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6109610999 (or 6109610997 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 4521112105220 its reverse (225012111254), we get a palindrome (4746124216474).

The spelling of 4521112105220 in words is "four trillion, five hundred twenty-one billion, one hundred twelve million, one hundred five thousand, two hundred twenty".