20212321210201 has 2 divisors, whose sum is σ = 20212321210202. Its totient is φ = 20212321210200.

The previous prime is 20212321210183. The next prime is 20212321210217. The reversal of 20212321210201 is 10201212321202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17006345015625 + 3205976194576 = 4123875^2 + 1790524^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212321210201 - 2¹¹ = 20212321208153 is a prime.

It is not a weakly prime, because it can be changed into another prime (20212321210241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106160605100 + 10106160605101.

It is an arithmetic number, because the mean of its divisors is an integer number (10106160605101).

Almost surely, 2^{20212321210201} is an apocalyptic number.

It is an amenable number.

20212321210201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212321210201 is an equidigital number, since it uses as much as digits as its factorization.

20212321210201 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 19.

Adding to 20212321210201 its reverse (10201212321202), we get a palindrome (30413533531403).

The spelling of 20212321210201 in words is "twenty trillion, two hundred twelve billion, three hundred twenty-one million, two hundred ten thousand, two hundred one".