20331321120201 has 64 divisors (see below), whose sum is σ = 35234294280192. Its totient is φ = 10134353256192.

The previous prime is 20331321120199. The next prime is 20331321120239. The reversal of 20331321120201 is 10202112313302.

It is not a de Polignac number, because 20331321120201 - 2¹ = 20331321120199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20331321120001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18984790 + ... + 20027103.

It is an arithmetic number, because the mean of its divisors is an integer number (550535848128).

Almost surely, 2^{20331321120201} is an apocalyptic number.

20331321120201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20331321120201 is a deficient number, since it is larger than the sum of its proper divisors (14902973159991).

20331321120201 is a wasteful number, since it uses less digits than its factorization.

20331321120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39012022.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20331321120201 its reverse (10202112313302), we get a palindrome (30533433433503).

The spelling of 20331321120201 in words is "twenty trillion, three hundred thirty-one billion, three hundred twenty-one million, one hundred twenty thousand, two hundred one".