4400331121 has 2 divisors, whose sum is σ = 4400331122. Its totient is φ = 4400331120.

The previous prime is 4400331113. The next prime is 4400331137. The reversal of 4400331121 is 1211330044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3059306721 + 1341024400 = 55311^2 + 36620^2 .

It is a cyclic number.

It is not a de Polignac number, because 4400331121 - 2³ = 4400331113 is a prime.

It is a super-2 number, since 2×4400331121² = 38725827948882233282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4400331151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200165560 + 2200165561.

It is an arithmetic number, because the mean of its divisors is an integer number (2200165561).

Almost surely, 2^4400331121 is an apocalyptic number.

It is an amenable number.

4400331121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4400331121 is an equidigital number, since it uses as much as digits as its factorization.

4400331121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4400331121 is about 66334.9916786005. The cubic root of 4400331121 is about 1638.6836453942.

Adding to 4400331121 its reverse (1211330044), we get a palindrome (5611661165).

The spelling of 4400331121 in words is "four billion, four hundred million, three hundred thirty-one thousand, one hundred twenty-one".