12041112021 has 4 divisors (see below), whose sum is σ = 16054816032. Its totient is φ = 8027408012.

The previous prime is 12041111993. The next prime is 12041112067. The reversal of 12041112021 is 12021114021.

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 12041112021 - 2⁷ = 12041111893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12041112091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2006852001 + ... + 2006852006.

It is an arithmetic number, because the mean of its divisors is an integer number (4013704008).

Almost surely, 2^12041112021 is an apocalyptic number.

It is an amenable number.

12041112021 is a deficient number, since it is larger than the sum of its proper divisors (4013704011).

12041112021 is an equidigital number, since it uses as much as digits as its factorization.

12041112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4013704010.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12041112021 its reverse (12021114021), we get a palindrome (24062226042).

The spelling of 12041112021 in words is "twelve billion, forty-one million, one hundred twelve thousand, twenty-one".