21201012000006 has 16 divisors (see below), whose sum is σ = 42402069811200. Its totient is φ = 7066996364808.

The previous prime is 21201011999969. The next prime is 21201012000011. The reversal of 21201012000006 is 60000021010212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8342475 + ... + 10582953.

It is an arithmetic number, because the mean of its divisors is an integer number (2650129363200).

Almost surely, 2^{21201012000006} is an apocalyptic number.

21201012000006 is an abundant number, since it is smaller than the sum of its proper divisors (21201057811194).

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

21201012000006 is a wasteful number, since it uses less digits than its factorization.

21201012000006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3817603.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21201012000006 its reverse (60000021010212), we get a palindrome (81201033010218).

The spelling of 21201012000006 in words is "twenty-one trillion, two hundred one billion, twelve million, six", and thus it is an aban number.