100244440100 has 108 divisors (see below), whose sum is σ = 255039676416. Its totient is φ = 34098684480.

The previous prime is 100244440057. The next prime is 100244440103. The reversal of 100244440100 is 1044442001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (100244440103) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 541757 + ... + 702843.

Almost surely, 2^100244440100 is an apocalyptic number.

100244440100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100244440100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127519838208).

100244440100 is an abundant number, since it is smaller than the sum of its proper divisors (154795236316).

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

100244440100 is a wasteful number, since it uses less digits than its factorization.

100244440100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161242 (or 161228 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 100244440100 its reverse (1044442001), we get a palindrome (101288882101).

The spelling of 100244440100 in words is "one hundred billion, two hundred forty-four million, four hundred forty thousand, one hundred".