1021144322444 has 48 divisors (see below), whose sum is σ = 1849009483776. Its totient is φ = 493109942400.

The previous prime is 1021144322389. The next prime is 1021144322453. The reversal of 1021144322444 is 4442234411201.

1021144322444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1021144322444.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57271859 + ... + 57289685.

It is an arithmetic number, because the mean of its divisors is an integer number (38521030912).

Almost surely, 2^{1021144322444} is an apocalyptic number.

It is an amenable number.

1021144322444 is a deficient number, since it is larger than the sum of its proper divisors (827865161332).

1021144322444 is a wasteful number, since it uses less digits than its factorization.

1021144322444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21366 (or 21364 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 1021144322444 its reverse (4442234411201), we get a palindrome (5463378733645).

The spelling of 1021144322444 in words is "one trillion, twenty-one billion, one hundred forty-four million, three hundred twenty-two thousand, four hundred forty-four".