44121211321 has 16 divisors (see below), whose sum is σ = 48252673728. Its totient is φ = 40009953600.

The previous prime is 44121211271. The next prime is 44121211439. The reversal of 44121211321 is 12311212144.

It is a cyclic number.

It is not a de Polignac number, because 44121211321 - 2¹³ = 44121203129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44121211292 and 44121211301.

It is not an unprimeable number, because it can be changed into a prime (44121011321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9765555 + ... + 9770071.

It is an arithmetic number, because the mean of its divisors is an integer number (3015792108).

Almost surely, 2^44121211321 is an apocalyptic number.

It is an amenable number.

44121211321 is a deficient number, since it is larger than the sum of its proper divisors (4131462407).

44121211321 is a wasteful number, since it uses less digits than its factorization.

44121211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6552.

The product of its digits is 384, while the sum is 22.

Adding to 44121211321 its reverse (12311212144), we get a palindrome (56432423465).

The spelling of 44121211321 in words is "forty-four billion, one hundred twenty-one million, two hundred eleven thousand, three hundred twenty-one".