4445221332144 has 40 divisors (see below), whose sum is σ = 11485551169840. Its totient is φ = 1481474285568.

The previous prime is 4445221332143. The next prime is 4445221332173. The reversal of 4445221332144 is 4412331225444.

It is not an unprimeable number, because it can be changed into a prime (4445221332143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8047357 + ... + 8581980.

It is an arithmetic number, because the mean of its divisors is an integer number (287138779246).

Almost surely, 2^{4445221332144} is an apocalyptic number.

It is an amenable number.

4445221332144 is an abundant number, since it is smaller than the sum of its proper divisors (7040329837696).

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

4445221332144 is a wasteful number, since it uses less digits than its factorization.

4445221332144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16634917 (or 16634911 counting only the distinct ones).

The product of its digits is 368640, while the sum is 39.

Adding to 4445221332144 its reverse (4412331225444), we get a palindrome (8857552557588).

The spelling of 4445221332144 in words is "four trillion, four hundred forty-five billion, two hundred twenty-one million, three hundred thirty-two thousand, one hundred forty-four".