10021440244 has 12 divisors (see below), whose sum is σ = 17538387300. Its totient is φ = 5010472448.

The previous prime is 10021440241. The next prime is 10021440259. The reversal of 10021440244 is 44204412001.

It can be written as a sum of positive squares in 2 ways, for example, as 9122160100 + 899280144 = 95510^2 + 29988^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021440241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52692 + ... + 151060.

It is an arithmetic number, because the mean of its divisors is an integer number (1461532275).

Almost surely, 2^10021440244 is an apocalyptic number.

It is an amenable number.

10021440244 is a deficient number, since it is larger than the sum of its proper divisors (7516947056).

10021440244 is a wasteful number, since it uses less digits than its factorization.

10021440244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123842 (or 123840 counting only the distinct ones).

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

Adding to 10021440244 its reverse (44204412001), we get a palindrome (54225852245).

The spelling of 10021440244 in words is "ten billion, twenty-one million, four hundred forty thousand, two hundred forty-four".