20201200220221 has 8 divisors (see below), whose sum is σ = 20638573038720. Its totient is φ = 19764142403808.

The previous prime is 20201200220203. The next prime is 20201200220231. The reversal of 20201200220221 is 12202200210202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20201200220221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201200220195 and 20201200220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201200220231) 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, 78620871 + ... + 78877396.

It is an arithmetic number, because the mean of its divisors is an integer number (2579821629840).

Almost surely, 2^{20201200220221} is an apocalyptic number.

It is an amenable number.

20201200220221 is a deficient number, since it is larger than the sum of its proper divisors (437372818499).

20201200220221 is a wasteful number, since it uses less digits than its factorization.

20201200220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157501043.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20201200220221 its reverse (12202200210202), we get a palindrome (32403400430423).

The spelling of 20201200220221 in words is "twenty trillion, two hundred one billion, two hundred million, two hundred twenty thousand, two hundred twenty-one".