21441222412203 has 16 divisors (see below), whose sum is σ = 31189301853696. Its totient is φ = 12993818060640.

The previous prime is 21441222412201. The next prime is 21441222412271. The reversal of 21441222412203 is 30221422214412.

It is not a de Polignac number, because 21441222412203 - 2¹ = 21441222412201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21441222412201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21049651 + ... + 22044732.

It is an arithmetic number, because the mean of its divisors is an integer number (1949331365856).

Almost surely, 2^{21441222412203} is an apocalyptic number.

21441222412203 is a deficient number, since it is larger than the sum of its proper divisors (9748079441493).

21441222412203 is a wasteful number, since it uses less digits than its factorization.

21441222412203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43109474.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 21441222412203 its reverse (30221422214412), we get a palindrome (51662644626615).

The spelling of 21441222412203 in words is "twenty-one trillion, four hundred forty-one billion, two hundred twenty-two million, four hundred twelve thousand, two hundred three".