20331000302221 has 8 divisors (see below), whose sum is σ = 23238674599040. Its totient is φ = 17424137425968.

The previous prime is 20331000302219. The next prime is 20331000302257. The reversal of 20331000302221 is 12220300013302.

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

It is not a de Polignac number, because 20331000302221 - 2¹ = 20331000302219 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 (20331000302321) 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, 202801446 + ... + 202901671.

It is an arithmetic number, because the mean of its divisors is an integer number (2904834324880).

Almost surely, 2^{20331000302221} is an apocalyptic number.

It is an amenable number.

20331000302221 is a deficient number, since it is larger than the sum of its proper divisors (2907674296819).

20331000302221 is an equidigital number, since it uses as much as digits as its factorization.

20331000302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405710283.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20331000302221 its reverse (12220300013302), we get a palindrome (32551300315523).

The spelling of 20331000302221 in words is "twenty trillion, three hundred thirty-one billion, three hundred two thousand, two hundred twenty-one".