21442011321041 has 4 divisors (see below), whose sum is σ = 21442051945584. Its totient is φ = 21441970696500.

The previous prime is 21442011321001. The next prime is 21442011321061. The reversal of 21442011321041 is 14012311024412.

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 21442011321041 - 2²⁶ = 21441944212177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21442011321041.

It is not an unprimeable number, because it can be changed into a prime (21442011321001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19509995 + ... + 20579696.

It is an arithmetic number, because the mean of its divisors is an integer number (5360512986396).

Almost surely, 2^{21442011321041} is an apocalyptic number.

It is an amenable number.

21442011321041 is a deficient number, since it is larger than the sum of its proper divisors (40624543).

21442011321041 is an equidigital number, since it uses as much as digits as its factorization.

21442011321041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40624542.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 21442011321041 its reverse (14012311024412), we get a palindrome (35454322345453).

The spelling of 21442011321041 in words is "twenty-one trillion, four hundred forty-two billion, eleven million, three hundred twenty-one thousand, forty-one".