44001111021 has 8 divisors (see below), whose sum is σ = 67049312064. Its totient is φ = 25143492000.

The previous prime is 44001110941. The next prime is 44001111047. The reversal of 44001111021 is 12011110044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44001111021 - 2⁷ = 44001110893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44001101021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047645480 + ... + 1047645521.

It is an arithmetic number, because the mean of its divisors is an integer number (8381164008).

Almost surely, 2^44001111021 is an apocalyptic number.

It is an amenable number.

44001111021 is a deficient number, since it is larger than the sum of its proper divisors (23048201043).

44001111021 is a wasteful number, since it uses less digits than its factorization.

44001111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095291011.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 44001111021 its reverse (12011110044), we get a palindrome (56012221065).

The spelling of 44001111021 in words is "forty-four billion, one million, one hundred eleven thousand, twenty-one".