201020000221 has 8 divisors (see below), whose sum is σ = 202025024640. Its totient is φ = 200017437312.

The previous prime is 201020000201. The next prime is 201020000227. The reversal of 201020000221 is 122000020102.

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

It is a cyclic number.

It is not a de Polignac number, because 201020000221 - 2¹¹ = 201019998173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201020000198 and 201020000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020000227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451531 + ... + 778408.

It is an arithmetic number, because the mean of its divisors is an integer number (25253128080).

Almost surely, 2^201020000221 is an apocalyptic number.

It is an amenable number.

201020000221 is a deficient number, since it is larger than the sum of its proper divisors (1005024419).

201020000221 is a wasteful number, since it uses less digits than its factorization.

201020000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230755.

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

Adding to 201020000221 its reverse (122000020102), we get a palindrome (323020020323).

The spelling of 201020000221 in words is "two hundred one billion, twenty million, two hundred twenty-one", and thus it is an aban number.