4411242221021 has 4 divisors (see below), whose sum is σ = 4411251360444. Its totient is φ = 4411233081600.

The previous prime is 4411242221011. The next prime is 4411242221041. The reversal of 4411242221021 is 1201222421144.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4350920404996 + 60321816025 = 2085886^2 + 245605^2 .

It is a cyclic number.

It is not a de Polignac number, because 4411242221021 - 2¹⁴ = 4411242204637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4411242221011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3802820 + ... + 4825341.

It is an arithmetic number, because the mean of its divisors is an integer number (1102812840111).

Almost surely, 2^{4411242221021} is an apocalyptic number.

It is an amenable number.

4411242221021 is a deficient number, since it is larger than the sum of its proper divisors (9139423).

4411242221021 is an equidigital number, since it uses as much as digits as its factorization.

4411242221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9139422.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 4411242221021 its reverse (1201222421144), we get a palindrome (5612464642165).

The spelling of 4411242221021 in words is "four trillion, four hundred eleven billion, two hundred forty-two million, two hundred twenty-one thousand, twenty-one".