12058021 has 4 divisors (see below), whose sum is σ = 12121344. Its totient is φ = 11994700.

The previous prime is 12058019. The next prime is 12058037. The reversal of 12058021 is 12085021.

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.

It is a cyclic number.

It is not a de Polignac number, because 12058021 - 2¹ = 12058019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12058021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12058051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31375 + ... + 31756.

It is an arithmetic number, because the mean of its divisors is an integer number (3030336).

Almost surely, 2^12058021 is an apocalyptic number.

It is an amenable number.

12058021 is a deficient number, since it is larger than the sum of its proper divisors (63323).

12058021 is an equidigital number, since it uses as much as digits as its factorization.

12058021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63322.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 12058021 is about 3472.4661265446. The cubic root of 12058021 is about 229.3112413275.

Subtracting 12058021 from its reverse (12085021), we obtain a cube (27000 = 30³).

The spelling of 12058021 in words is "twelve million, fifty-eight thousand, twenty-one".