4445222100 has 144 divisors (see below), whose sum is σ = 14170718016. Its totient is φ = 1066880000.

The previous prime is 4445222099. The next prime is 4445222113. The reversal of 4445222100 is 12225444.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 326632 + ... + 339968.

It is an arithmetic number, because the mean of its divisors is an integer number (98407764).

Almost surely, 2^4445222100 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 4445222100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7085359008).

4445222100 is an abundant number, since it is smaller than the sum of its proper divisors (9725495916).

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

4445222100 is a wasteful number, since it uses less digits than its factorization.

4445222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13466 (or 13459 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 4445222100 is about 66672.4988282275. The cubic root of 4445222100 is about 1644.2372704707.

Adding to 4445222100 its reverse (12225444), we get a palindrome (4457447544).

The spelling of 4445222100 in words is "four billion, four hundred forty-five million, two hundred twenty-two thousand, one hundred".