44122331221 has 16 divisors (see below), whose sum is σ = 48744109440. Its totient is φ = 39751525440.

The previous prime is 44122331207. The next prime is 44122331269. The reversal of 44122331221 is 12213322144.

It is a cyclic number.

It is not a de Polignac number, because 44122331221 - 2⁵ = 44122331189 is a prime.

It is a super-2 number, since 2×44122331221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44122331291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216210 + ... + 367411.

It is an arithmetic number, because the mean of its divisors is an integer number (3046506840).

Almost surely, 2^44122331221 is an apocalyptic number.

It is an amenable number.

44122331221 is a deficient number, since it is larger than the sum of its proper divisors (4621778219).

44122331221 is a wasteful number, since it uses less digits than its factorization.

44122331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583836.

The product of its digits is 2304, while the sum is 25.

Adding to 44122331221 its reverse (12213322144), we get a palindrome (56335653365).

The spelling of 44122331221 in words is "forty-four billion, one hundred twenty-two million, three hundred thirty-one thousand, two hundred twenty-one".