412121 has 4 divisors (see below), whose sum is σ = 413952. Its totient is φ = 410292.

The previous prime is 412109. The next prime is 412123. The reversal of 412121 is 121214.

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: 121214 = 2 ⋅60607.

It is a cyclic number.

It is not a de Polignac number, because 412121 - 2¹⁴ = 395737 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (412123) 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, 521 + ... + 1046.

It is an arithmetic number, because the mean of its divisors is an integer number (103488).

2⁴¹²¹²¹ is an apocalyptic number.

It is an amenable number.

412121 is a deficient number, since it is larger than the sum of its proper divisors (1831).

412121 is a wasteful number, since it uses less digits than its factorization.

412121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830.

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

The square root of 412121 is about 641.9665100299. The cubic root of 412121 is about 74.4174723869.

Adding to 412121 its reverse (121214), we get a palindrome (533335).

It can be divided in two parts, 4 and 12121, that multiplied together give a palindrome (48484).

The spelling of 412121 in words is "four hundred twelve thousand, one hundred twenty-one", and thus it is an iban number.