100244444421 has 16 divisors (see below), whose sum is σ = 145817049600. Its totient is φ = 60751313520.

The previous prime is 100244444389. The next prime is 100244444431. The reversal of 100244444421 is 124444442001.

It is not a de Polignac number, because 100244444421 - 2⁵ = 100244444389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100244444431) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 780630 + ... + 899928.

It is an arithmetic number, because the mean of its divisors is an integer number (9113565600).

Almost surely, 2^100244444421 is an apocalyptic number.

100244444421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100244444421 is a deficient number, since it is larger than the sum of its proper divisors (45572605179).

100244444421 is a wasteful number, since it uses less digits than its factorization.

100244444421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144776.

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 100244444421 its reverse (124444442001), we get a palindrome (224688886422).

The spelling of 100244444421 in words is "one hundred billion, two hundred forty-four million, four hundred forty-four thousand, four hundred twenty-one".