4444221100 has 108 divisors (see below), whose sum is σ = 10643475024. Its totient is φ = 1609520000.

The previous prime is 4444220999. The next prime is 4444221113. The reversal of 4444221100 is 11224444.

It is a super-3 number, since 3×4444221100³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3762510 + ... + 3763690.

Almost surely, 2^4444221100 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 4444221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5321737512).

4444221100 is an abundant number, since it is smaller than the sum of its proper divisors (6199253924).

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

4444221100 is a wasteful number, since it uses less digits than its factorization.

4444221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528 (or 1510 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 4444221100 is about 66664.9915622885. The cubic root of 4444221100 is about 1644.1138416874.

Adding to 4444221100 its reverse (11224444), we get a palindrome (4455445544).

The spelling of 4444221100 in words is "four billion, four hundred forty-four million, two hundred twenty-one thousand, one hundred".