444053111022221 has 4 divisors (see below), whose sum is σ = 456054546455292. Its totient is φ = 432051675589152.

The previous prime is 444053111022211. The next prime is 444053111022361. The reversal of 444053111022221 is 122220111350444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 344273589361321 + 99779521660900 = 18554611^2 + 9988970^2 .

It is a cyclic number.

It is not a de Polignac number, because 444053111022221 - 2⁴⁶ = 373684366844557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444053111022211) 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, 6000717716480 + ... + 6000717716553.

It is an arithmetic number, because the mean of its divisors is an integer number (114013636613823).

Almost surely, 2^{444053111022221} is an apocalyptic number.

It is an amenable number.

444053111022221 is a deficient number, since it is larger than the sum of its proper divisors (12001435433071).

444053111022221 is a wasteful number, since it uses less digits than its factorization.

444053111022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12001435433070.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 444053111022221 its reverse (122220111350444), we get a palindrome (566273222372665).

The spelling of 444053111022221 in words is "four hundred forty-four trillion, fifty-three billion, one hundred eleven million, twenty-two thousand, two hundred twenty-one".