21412004001 has 16 divisors (see below), whose sum is σ = 30250967040. Its totient is φ = 13433806800.

The previous prime is 21412003997. The next prime is 21412004011. The reversal of 21412004001 is 10040021412.

It is not a de Polignac number, because 21412004001 - 2² = 21412003997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21412004011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1235265 + ... + 1252478.

It is an arithmetic number, because the mean of its divisors is an integer number (1890685440).

Almost surely, 2^21412004001 is an apocalyptic number.

It is an amenable number.

21412004001 is a deficient number, since it is larger than the sum of its proper divisors (8838963039).

21412004001 is a wasteful number, since it uses less digits than its factorization.

21412004001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487916.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21412004001 its reverse (10040021412), we get a palindrome (31452025413).

The spelling of 21412004001 in words is "twenty-one billion, four hundred twelve million, four thousand, one".