40444022242221 has 8 divisors (see below), whose sum is σ = 58073467835040. Its totient is φ = 24888629072112.

The previous prime is 40444022242213. The next prime is 40444022242231. The reversal of 40444022242221 is 12224222044404.

40444022242221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40444022242221 - 2³ = 40444022242213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444022242231) 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, 518513105631 + ... + 518513105708.

It is an arithmetic number, because the mean of its divisors is an integer number (7259183479380).

Almost surely, 2^{40444022242221} is an apocalyptic number.

It is an amenable number.

40444022242221 is a deficient number, since it is larger than the sum of its proper divisors (17629445592819).

40444022242221 is a wasteful number, since it uses less digits than its factorization.

40444022242221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037026211355.

The product of its (nonzero) digits is 65536, while the sum is 33.

Adding to 40444022242221 its reverse (12224222044404), we get a palindrome (52668244286625).

The spelling of 40444022242221 in words is "forty trillion, four hundred forty-four billion, twenty-two million, two hundred forty-two thousand, two hundred twenty-one".