100220112444 has 72 divisors (see below), whose sum is σ = 248515173760. Its totient is φ = 31428520704.

The previous prime is 100220112437. The next prime is 100220112479. The reversal of 100220112444 is 444211022001.

It is a self number, because there is not a number n which added to its sum of digits gives 100220112444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11505939 + ... + 11514645.

Almost surely, 2^100220112444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100220112444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124257586880).

100220112444 is an abundant number, since it is smaller than the sum of its proper divisors (148295061316).

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

100220112444 is a wasteful number, since it uses less digits than its factorization.

100220112444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12067 (or 12048 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 100220112444 its reverse (444211022001), we get a palindrome (544431134445).

The spelling of 100220112444 in words is "one hundred billion, two hundred twenty million, one hundred twelve thousand, four hundred forty-four".