21223405441041 has 4 divisors (see below), whose sum is σ = 28297873921392. Its totient is φ = 14148936960692.

The previous prime is 21223405441037. The next prime is 21223405441081. The reversal of 21223405441041 is 14014450432212.

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 21223405441041 - 2² = 21223405441037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21223405440993 and 21223405441011.

It is not an unprimeable number, because it can be changed into a prime (21223405441031) 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, 3537234240171 + ... + 3537234240176.

It is an arithmetic number, because the mean of its divisors is an integer number (7074468480348).

Almost surely, 2^{21223405441041} is an apocalyptic number.

It is an amenable number.

21223405441041 is a deficient number, since it is larger than the sum of its proper divisors (7074468480351).

21223405441041 is an equidigital number, since it uses as much as digits as its factorization.

21223405441041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074468480350.

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 21223405441041 its reverse (14014450432212), we get a palindrome (35237855873253).

The spelling of 21223405441041 in words is "twenty-one trillion, two hundred twenty-three billion, four hundred five million, four hundred forty-one thousand, forty-one".