21412204011 has 16 divisors (see below), whose sum is σ = 34605582720. Its totient is φ = 12977093160.

The previous prime is 21412204001. The next prime is 21412204013. The reversal of 21412204011 is 11040221412.

21412204011 is a `hidden beast` number, since 2 + 1 + 41 + 220 + 401 + 1 = 666.

It is not a de Polignac number, because 21412204011 - 2⁹ = 21412203499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21412204013) 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, 36047185 + ... + 36047778.

It is an arithmetic number, because the mean of its divisors is an integer number (2162848920).

Almost surely, 2^21412204011 is an apocalyptic number.

21412204011 is a deficient number, since it is larger than the sum of its proper divisors (13193378709).

21412204011 is a wasteful number, since it uses less digits than its factorization.

21412204011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72094983 (or 72094977 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 21412204011 its reverse (11040221412), we get a palindrome (32452425423).

The spelling of 21412204011 in words is "twenty-one billion, four hundred twelve million, two hundred four thousand, eleven".