100004220544 has 32 divisors (see below), whose sum is σ = 199962383040. Its totient is φ = 49817583360.

The previous prime is 100004220523. The next prime is 100004220557. The reversal of 100004220544 is 445022400001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×100004220544² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1406794 + ... + 1476169.

It is an arithmetic number, because the mean of its divisors is an integer number (6248824470).

Almost surely, 2^100004220544 is an apocalyptic number.

It is an amenable number.

100004220544 is a deficient number, since it is larger than the sum of its proper divisors (99958162496).

100004220544 is an equidigital number, since it uses as much as digits as its factorization.

100004220544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883248 (or 2883236 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 100004220544 its reverse (445022400001), we get a palindrome (545026620545).

The spelling of 100004220544 in words is "one hundred billion, four million, two hundred twenty thousand, five hundred forty-four".