12021004441 has 8 divisors (see below), whose sum is σ = 12545179200. Its totient is φ = 11496956592.

The previous prime is 12021004381. The next prime is 12021004469. The reversal of 12021004441 is 14440012021.

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

It is a cyclic number.

It is not a de Polignac number, because 12021004441 - 2¹⁵ = 12020971673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021001441) 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, 197010 + ... + 250708.

It is an arithmetic number, because the mean of its divisors is an integer number (1568147400).

Almost surely, 2^12021004441 is an apocalyptic number.

It is an amenable number.

12021004441 is a deficient number, since it is larger than the sum of its proper divisors (524174759).

12021004441 is an equidigital number, since it uses as much as digits as its factorization.

12021004441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63455.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12021004441 its reverse (14440012021), we get a palindrome (26461016462).

The spelling of 12021004441 in words is "twelve billion, twenty-one million, four thousand, four hundred forty-one".