20200010000221 has 4 divisors (see below), whose sum is σ = 20201838562912. Its totient is φ = 20198181437532.

The previous prime is 20200010000213. The next prime is 20200010000237. The reversal of 20200010000221 is 12200001000202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20200010000221 - 2³ = 20200010000213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200010000198 and 20200010000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200010000281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914264775 + ... + 914286868.

It is an arithmetic number, because the mean of its divisors is an integer number (5050459640728).

Almost surely, 2^{20200010000221} is an apocalyptic number.

It is an amenable number.

20200010000221 is a deficient number, since it is larger than the sum of its proper divisors (1828562691).

20200010000221 is a wasteful number, since it uses less digits than its factorization.

20200010000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828562690.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20200010000221 its reverse (12200001000202), we get a palindrome (32400011000423).

The spelling of 20200010000221 in words is "twenty trillion, two hundred billion, ten million, two hundred twenty-one", and thus it is an aban number.