12021365 has 8 divisors (see below), whose sum is σ = 14629248. Its totient is φ = 9481360.

The previous prime is 12021353. The next prime is 12021367. The reversal of 12021365 is 56312021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12021365 - 2¹⁰ = 12020341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16577 + ... + 17286.

It is an arithmetic number, because the mean of its divisors is an integer number (1828656).

Almost surely, 2^12021365 is an apocalyptic number.

It is an amenable number.

12021365 is a deficient number, since it is larger than the sum of its proper divisors (2607883).

12021365 is an equidigital number, since it uses as much as digits as its factorization.

12021365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33939.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12021365 is about 3467.1840158838. The cubic root of 12021365 is about 229.0786391756.

Adding to 12021365 its reverse (56312021), we get a palindrome (68333386).

The spelling of 12021365 in words is "twelve million, twenty-one thousand, three hundred sixty-five".