44001220033 has 6 divisors (see below), whose sum is σ = 44432574594. Its totient is φ = 43574013216.

The previous prime is 44001220027. The next prime is 44001220063. The reversal of 44001220033 is 33002210044.

It can be written as a sum of positive squares in only one way, i.e., 38743229889 + 5257990144 = 196833^2 + 72512^2 .

It is not a de Polignac number, because 44001220033 - 2¹⁷ = 44001088961 is a prime.

It is a super-2 number, since 2×44001220033² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44001220063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2063160 + ... + 2084377.

It is an arithmetic number, because the mean of its divisors is an integer number (7405429099).

Almost surely, 2^44001220033 is an apocalyptic number.

It is an amenable number.

44001220033 is a deficient number, since it is larger than the sum of its proper divisors (431354561).

44001220033 is an equidigital number, since it uses as much as digits as its factorization.

44001220033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147743 (or 4147640 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 44001220033 its reverse (33002210044), we get a palindrome (77003430077).

The spelling of 44001220033 in words is "forty-four billion, one million, two hundred twenty thousand, thirty-three".