21412204004 has 12 divisors (see below), whose sum is σ = 39675554604. Its totient is φ = 10076331264.

The previous prime is 21412204001. The next prime is 21412204013. The reversal of 21412204004 is 40040221412.

It can be written as a sum of positive squares in 2 ways, for example, as 9969623104 + 11442580900 = 99848^2 + 106970^2 .

It is a super-3 number, since 3×21412204004³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21412204001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157442609 + ... + 157442744.

It is an arithmetic number, because the mean of its divisors is an integer number (3306296217).

Almost surely, 2^21412204004 is an apocalyptic number.

It is an amenable number.

21412204004 is a deficient number, since it is larger than the sum of its proper divisors (18263350600).

21412204004 is a wasteful number, since it uses less digits than its factorization.

21412204004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314885374 (or 314885372 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 21412204004 its reverse (40040221412), we get a palindrome (61452425416).

The spelling of 21412204004 in words is "twenty-one billion, four hundred twelve million, two hundred four thousand, four".