4440121000000 has 392 divisors, whose sum is σ = 12729999553920. Its totient is φ = 1505011200000.

The previous prime is 4440120999983. The next prime is 4440121000009. The reversal of 4440121000000 is 1210444.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (4440121000009) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 622996437 + ... + 623003563.

Almost surely, 2^{4440121000000} is an apocalyptic number.

4440121000000 is a gapful number since it is divisible by the number (40) 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 4440121000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6364999776960).

4440121000000 is an abundant number, since it is smaller than the sum of its proper divisors (8289878553920).

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

4440121000000 is an frugal number, since it uses more digits than its factorization.

4440121000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7265 (or 7230 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 4440121000000 its reverse (1210444), we get a palindrome (4440122210444).

The spelling of 4440121000000 in words is "four trillion, four hundred forty billion, one hundred twenty-one million", and thus it is an aban number.