441022121 has 2 divisors, whose sum is σ = 441022122. Its totient is φ = 441022120.

The previous prime is 441022097. The next prime is 441022123. The reversal of 441022121 is 121220144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438316096 + 2706025 = 20936^2 + 1645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-441022121 is a prime.

It is a super-2 number, since 2×441022121² = 389001022422677282, which contains 22 as substring.

Together with 441022123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 441022121.

It is not a weakly prime, because it can be changed into another prime (441022123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220511060 + 220511061.

It is an arithmetic number, because the mean of its divisors is an integer number (220511061).

Almost surely, 2^441022121 is an apocalyptic number.

It is an amenable number.

441022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

441022121 is an equidigital number, since it uses as much as digits as its factorization.

441022121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 441022121 is about 21000.5266838715. The cubic root of 441022121 is about 761.1789878423.

Adding to 441022121 its reverse (121220144), we get a palindrome (562242265).

The spelling of 441022121 in words is "four hundred forty-one million, twenty-two thousand, one hundred twenty-one".