12021411 has 8 divisors (see below), whose sum is σ = 16461904. Its totient is φ = 7797600.

The previous prime is 12021403. The next prime is 12021473. The reversal of 12021411 is 11412021.

It is a happy number.

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

It is not a de Polignac number, because 12021411 - 2³ = 12021403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021491) 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, 54040 + ... + 54261.

It is an arithmetic number, because the mean of its divisors is an integer number (2057738).

Almost surely, 2^12021411 is an apocalyptic number.

12021411 is a deficient number, since it is larger than the sum of its proper divisors (4440493).

12021411 is a wasteful number, since it uses less digits than its factorization.

12021411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108341.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 12021411 is about 3467.1906495029. The cubic root of 12021411 is about 229.0789313666.

Adding to 12021411 its reverse (11412021), we get a palindrome (23433432).

The spelling of 12021411 in words is "twelve million, twenty-one thousand, four hundred eleven".