20001202322201 has 2 divisors, whose sum is σ = 20001202322202. Its totient is φ = 20001202322200.

The previous prime is 20001202322191. The next prime is 20001202322317. The reversal of 20001202322201 is 10222320210002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19080516015625 + 920686306576 = 4368125^2 + 959524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001202322201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20001202322201.

It is not a weakly prime, because it can be changed into another prime (20001202322701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000601161100 + 10000601161101.

It is an arithmetic number, because the mean of its divisors is an integer number (10000601161101).

Almost surely, 2^{20001202322201} is an apocalyptic number.

It is an amenable number.

20001202322201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001202322201 is an equidigital number, since it uses as much as digits as its factorization.

20001202322201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20001202322201 its reverse (10222320210002), we get a palindrome (30223522532203).

The spelling of 20001202322201 in words is "twenty trillion, one billion, two hundred two million, three hundred twenty-two thousand, two hundred one".