20331022122001 has 8 divisors (see below), whose sum is σ = 20560289256360. Its totient is φ = 20101773403008.

The previous prime is 20331022121923. The next prime is 20331022122071. The reversal of 20331022122001 is 10022122013302.

It can be written as a sum of positive squares in 4 ways, for example, as 29644574976 + 20301377547025 = 172176^2 + 4505705^2 .

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 20331022122001 - 2²¹ = 20331020024849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20331022122001.

It is not an unprimeable number, because it can be changed into a prime (20331022122071) 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, 2377306 + ... + 6805411.

It is an arithmetic number, because the mean of its divisors is an integer number (2570036157045).

Almost surely, 2^{20331022122001} is an apocalyptic number.

It is an amenable number.

20331022122001 is a deficient number, since it is larger than the sum of its proper divisors (229267134359).

20331022122001 is an equidigital number, since it uses as much as digits as its factorization.

20331022122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9207683.

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

Adding to 20331022122001 its reverse (10022122013302), we get a palindrome (30353144135303).

The spelling of 20331022122001 in words is "twenty trillion, three hundred thirty-one billion, twenty-two million, one hundred twenty-two thousand, one".