412021 has 4 divisors (see below), whose sum is σ = 425344. Its totient is φ = 398700.

The previous prime is 412019. The next prime is 412031. The reversal of 412021 is 120214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120214 = 2 ⋅60107.

It is a cyclic number.

It is not a de Polignac number, because 412021 - 2¹ = 412019 is a prime.

It is a super-2 number, since 2×412021² = 339522608882, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 411989 and 412007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6615 + ... + 6676.

It is an arithmetic number, because the mean of its divisors is an integer number (106336).

2⁴¹²⁰²¹ is an apocalyptic number.

It is an amenable number.

412021 is a deficient number, since it is larger than the sum of its proper divisors (13323).

412021 is a wasteful number, since it uses less digits than its factorization.

412021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13322.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 412021 is about 641.8886196218. Note that the first 3 decimals coincide. The cubic root of 412021 is about 74.4114528367.

Adding to 412021 its reverse (120214), we get a palindrome (532235).

It can be divided in two parts, 4 and 12021, that multiplied together give a palindrome (48084).

The spelling of 412021 in words is "four hundred twelve thousand, twenty-one", and thus it is an iban number.