21412423104412 has 24 divisors (see below), whose sum is σ = 37990153786032. Its totient is φ = 10558132848000.

The previous prime is 21412423104389. The next prime is 21412423104421. The reversal of 21412423104412 is 21440132421412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2745139 + ... + 7096522.

It is an arithmetic number, because the mean of its divisors is an integer number (1582923074418).

Almost surely, 2^{21412423104412} is an apocalyptic number.

It is an amenable number.

21412423104412 is a deficient number, since it is larger than the sum of its proper divisors (16577730681620).

21412423104412 is a wasteful number, since it uses less digits than its factorization.

21412423104412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9849189 (or 9849187 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 21412423104412 its reverse (21440132421412), we get a palindrome (42852555525824).

The spelling of 21412423104412 in words is "twenty-one trillion, four hundred twelve billion, four hundred twenty-three million, one hundred four thousand, four hundred twelve".