21411444224231 has 8 divisors (see below), whose sum is σ = 22081031049600. Its totient is φ = 20752080098680.

The previous prime is 21411444224189. The next prime is 21411444224237. The reversal of 21411444224231 is 13242244411412.

It is a happy number.

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 21411444224231 - 2¹⁰ = 21411444223207 is a prime.

It is a super-2 number, since 2×21411444224231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21411444224191 and 21411444224200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411444224237) 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, 2555670701 + ... + 2555679078.

It is an arithmetic number, because the mean of its divisors is an integer number (2760128881200).

Almost surely, 2^{21411444224231} is an apocalyptic number.

21411444224231 is a deficient number, since it is larger than the sum of its proper divisors (669586825369).

21411444224231 is an equidigital number, since it uses as much as digits as its factorization.

21411444224231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111349909.

The product of its digits is 49152, while the sum is 35.

Adding to 21411444224231 its reverse (13242244411412), we get a palindrome (34653688635643).

The spelling of 21411444224231 in words is "twenty-one trillion, four hundred eleven billion, four hundred forty-four million, two hundred twenty-four thousand, two hundred thirty-one".