4441221332121 has 16 divisors (see below), whose sum is σ = 6797923241984. Its totient is φ = 2526460306704.

The previous prime is 4441221332081. The next prime is 4441221332129. The reversal of 4441221332121 is 1212331221444.

It is a happy number.

It is not a de Polignac number, because 4441221332121 - 2⁷ = 4441221331993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4441221332129) 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, 474180811 + ... + 474190176.

It is an arithmetic number, because the mean of its divisors is an integer number (424870202624).

Almost surely, 2^{4441221332121} is an apocalyptic number.

It is an amenable number.

4441221332121 is a deficient number, since it is larger than the sum of its proper divisors (2356701909863).

4441221332121 is a wasteful number, since it uses less digits than its factorization.

4441221332121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948371220.

The product of its digits is 9216, while the sum is 30.

Adding to 4441221332121 its reverse (1212331221444), we get a palindrome (5653552553565).

The spelling of 4441221332121 in words is "four trillion, four hundred forty-one billion, two hundred twenty-one million, three hundred thirty-two thousand, one hundred twenty-one".