20001020201206 has 8 divisors (see below), whose sum is σ = 32728942147464. Its totient is φ = 9091372818720.

The previous prime is 20001020201167. The next prime is 20001020201219. The reversal of 20001020201206 is 60210202010002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20001020201206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454568640915 + ... + 454568640958.

It is an arithmetic number, because the mean of its divisors is an integer number (4091117768433).

Almost surely, 2^{20001020201206} is an apocalyptic number.

20001020201206 is a deficient number, since it is larger than the sum of its proper divisors (12727921946258).

20001020201206 is a wasteful number, since it uses less digits than its factorization.

20001020201206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909137281886.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20001020201206 its reverse (60210202010002), we get a palindrome (80211222211208).

The spelling of 20001020201206 in words is "twenty trillion, one billion, twenty million, two hundred one thousand, two hundred six".