410221081 has 2 divisors, whose sum is σ = 410221082. Its totient is φ = 410221080.

The previous prime is 410221073. The next prime is 410221099. The reversal of 410221081 is 180122014.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280261081 + 129960000 = 16741^2 + 11400^2 .

It is a cyclic number.

It is not a de Polignac number, because 410221081 - 2³ = 410221073 is a prime.

It is a super-2 number, since 2×410221081² = 336562670593617122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (410221181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205110540 + 205110541.

It is an arithmetic number, because the mean of its divisors is an integer number (205110541).

Almost surely, 2^410221081 is an apocalyptic number.

It is an amenable number.

410221081 is a deficient number, since it is larger than the sum of its proper divisors (1).

410221081 is an equidigital number, since it uses as much as digits as its factorization.

410221081 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 19.

The square root of 410221081 is about 20253.9152017579. The cubic root of 410221081 is about 743.0293887407.

Adding to 410221081 its reverse (180122014), we get a palindrome (590343095).

The spelling of 410221081 in words is "four hundred ten million, two hundred twenty-one thousand, eighty-one".