20321301200221 has 8 divisors (see below), whose sum is σ = 23718479212800. Its totient is φ = 17047656933648.

The previous prime is 20321301200219. The next prime is 20321301200243. The reversal of 20321301200221 is 12200210312302.

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 20321301200221 - 2¹ = 20321301200219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321301200201) 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, 30883436146 + ... + 30883436803.

It is an arithmetic number, because the mean of its divisors is an integer number (2964809901600).

Almost surely, 2^{20321301200221} is an apocalyptic number.

It is an amenable number.

20321301200221 is a deficient number, since it is larger than the sum of its proper divisors (3397178012579).

20321301200221 is an equidigital number, since it uses as much as digits as its factorization.

20321301200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61766873003.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20321301200221 its reverse (12200210312302), we get a palindrome (32521511512523).

The spelling of 20321301200221 in words is "twenty trillion, three hundred twenty-one billion, three hundred one million, two hundred thousand, two hundred twenty-one".