21441411204 has 12 divisors (see below), whose sum is σ = 50029959504. Its totient is φ = 7147137064.

The previous prime is 21441411179. The next prime is 21441411217. The reversal of 21441411204 is 40211414412.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×21441411204² (a number of 21 digits) contains 22 as substring.

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, 893392122 + ... + 893392145.

It is an arithmetic number, because the mean of its divisors is an integer number (4169163292).

Almost surely, 2^21441411204 is an apocalyptic number.

It is an amenable number.

21441411204 is an abundant number, since it is smaller than the sum of its proper divisors (28588548300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21441411204 is a wasteful number, since it uses less digits than its factorization.

21441411204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786784274 (or 1786784272 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 21441411204 its reverse (40211414412), we get a palindrome (61652825616).

The spelling of 21441411204 in words is "twenty-one billion, four hundred forty-one million, four hundred eleven thousand, two hundred four".