12441112021 has 8 divisors (see below), whose sum is σ = 13399082424. Its totient is φ = 11483279040.

The previous prime is 12441112007. The next prime is 12441112031. The reversal of 12441112021 is 12021114421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4460369796 + 7980742225 = 66786^2 + 89335^2 .

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 12441112021 - 2²⁷ = 12306894293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12441112021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12441112031) 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, 227835 + ... + 277111.

It is an arithmetic number, because the mean of its divisors is an integer number (1674885303).

Almost surely, 2^12441112021 is an apocalyptic number.

It is an amenable number.

12441112021 is a deficient number, since it is larger than the sum of its proper divisors (957970403).

12441112021 is a wasteful number, since it uses less digits than its factorization.

12441112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68711.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12441112021 its reverse (12021114421), we get a palindrome (24462226442).

The spelling of 12441112021 in words is "twelve billion, four hundred forty-one million, one hundred twelve thousand, twenty-one".