2000020000221 has 40 divisors (see below), whose sum is σ = 3037620009600. Its totient is φ = 1311243204672.

The previous prime is 2000020000211. The next prime is 2000020000243. The reversal of 2000020000221 is 1220000200002.

It is not a de Polignac number, because 2000020000221 - 2⁶ = 2000020000157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000020000211) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 345180 + ... + 2029578.

It is an arithmetic number, because the mean of its divisors is an integer number (75940500240).

Almost surely, 2^{2000020000221} is an apocalyptic number.

It is an amenable number.

2000020000221 is a deficient number, since it is larger than the sum of its proper divisors (1037600009379).

2000020000221 is a wasteful number, since it uses less digits than its factorization.

2000020000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684655 (or 1684646 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 2000020000221 its reverse (1220000200002), we get a palindrome (3220020200223).

The spelling of 2000020000221 in words is "two trillion, twenty million, two hundred twenty-one", and thus it is an aban number.