412102021 has 2 divisors, whose sum is σ = 412102022. Its totient is φ = 412102020.

The previous prime is 412102013. The next prime is 412102037. The reversal of 412102021 is 120201214.

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., 339664900 + 72437121 = 18430^2 + 8511^2 .

It is a cyclic number.

It is not a de Polignac number, because 412102021 - 2³ = 412102013 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 412101992 and 412102010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412102051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206051010 + 206051011.

It is an arithmetic number, because the mean of its divisors is an integer number (206051011).

Almost surely, 2^412102021 is an apocalyptic number.

It is an amenable number.

412102021 is a deficient number, since it is larger than the sum of its proper divisors (1).

412102021 is an equidigital number, since it uses as much as digits as its factorization.

412102021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 412102021 is about 20300.2960815846. The cubic root of 412102021 is about 744.1633001136.

Adding to 412102021 its reverse (120201214), we get a palindrome (532303235).

The spelling of 412102021 in words is "four hundred twelve million, one hundred two thousand, twenty-one".