20000220210221 has 8 divisors (see below), whose sum is σ = 21052904662080. Its totient is φ = 18947539886688.

The previous prime is 20000220210203. The next prime is 20000220210241. The reversal of 20000220210221 is 12201202200002.

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 20000220210221 - 2³⁰ = 19999146468397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000220210196 and 20000220210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000220210241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16910600 + ... + 18054606.

It is an arithmetic number, because the mean of its divisors is an integer number (2631613082760).

Almost surely, 2^{20000220210221} is an apocalyptic number.

It is an amenable number.

20000220210221 is a deficient number, since it is larger than the sum of its proper divisors (1052684451859).

20000220210221 is a wasteful number, since it uses less digits than its factorization.

20000220210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064163.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20000220210221 its reverse (12201202200002), we get a palindrome (32201422410223).

The spelling of 20000220210221 in words is "twenty trillion, two hundred twenty million, two hundred ten thousand, two hundred twenty-one".