21411444224204 has 12 divisors (see below), whose sum is σ = 38084290136928. Its totient is φ = 10530218470800.

The previous prime is 21411444224189. The next prime is 21411444224237. The reversal of 21411444224204 is 40242244411412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43875910052 + ... + 43875910539.

It is an arithmetic number, because the mean of its divisors is an integer number (3173690844744).

Almost surely, 2^{21411444224204} is an apocalyptic number.

It is an amenable number.

21411444224204 is a deficient number, since it is larger than the sum of its proper divisors (16672845912724).

21411444224204 is a wasteful number, since it uses less digits than its factorization.

21411444224204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87751820656 (or 87751820654 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 35.

Adding to 21411444224204 its reverse (40242244411412), we get a palindrome (61653688635616).

The spelling of 21411444224204 in words is "twenty-one trillion, four hundred eleven billion, four hundred forty-four million, two hundred twenty-four thousand, two hundred four".