412010021 has 2 divisors, whose sum is σ = 412010022. Its totient is φ = 412010020.

The previous prime is 412010009. The next prime is 412010023. The reversal of 412010021 is 120010214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 346480996 + 65529025 = 18614^2 + 8095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412010021 is a prime.

Together with 412010023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 412009984 and 412010011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412010023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206005010 + 206005011.

It is an arithmetic number, because the mean of its divisors is an integer number (206005011).

Almost surely, 2^412010021 is an apocalyptic number.

It is an amenable number.

412010021 is a deficient number, since it is larger than the sum of its proper divisors (1).

412010021 is an equidigital number, since it uses as much as digits as its factorization.

412010021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 412010021 is about 20298.0299783008. The cubic root of 412010021 is about 744.1079189091.

Adding to 412010021 its reverse (120010214), we get a palindrome (532020235).

It can be divided in two parts, 4120 and 10021, that added together give a palindrome (14141).

The spelling of 412010021 in words is "four hundred twelve million, ten thousand, twenty-one".