44121322221 has 8 divisors (see below), whose sum is σ = 58992298560. Its totient is φ = 29332280352.

The previous prime is 44121322139. The next prime is 44121322241. The reversal of 44121322221 is 12222312144.

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

It is not a de Polignac number, because 44121322221 - 2¹⁰ = 44121321197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44121322191 and 44121322200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44121322241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20482360 + ... + 20484513.

It is an arithmetic number, because the mean of its divisors is an integer number (7374037320).

Almost surely, 2^44121322221 is an apocalyptic number.

It is an amenable number.

44121322221 is a deficient number, since it is larger than the sum of its proper divisors (14870976339).

44121322221 is a wasteful number, since it uses less digits than its factorization.

44121322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40967235.

The product of its digits is 1536, while the sum is 24.

Adding to 44121322221 its reverse (12222312144), we get a palindrome (56343634365).

The spelling of 44121322221 in words is "forty-four billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred twenty-one".