200201202120221 has 2 divisors, whose sum is σ = 200201202120222. Its totient is φ = 200201202120220.

The previous prime is 200201202120119. The next prime is 200201202120229. The reversal of 200201202120221 is 122021202102002.

It is a happy number.

200201202120221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121772218152025 + 78428983968196 = 11035045^2 + 8856014^2 .

It is a cyclic number.

It is not a de Polignac number, because 200201202120221 - 2²² = 200201197925917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200201202120221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200201202120229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100100601060110 + 100100601060111.

It is an arithmetic number, because the mean of its divisors is an integer number (100100601060111).

Almost surely, 2^{200201202120221} is an apocalyptic number.

It is an amenable number.

200201202120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200201202120221 is an equidigital number, since it uses as much as digits as its factorization.

200201202120221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200201202120221 its reverse (122021202102002), we get a palindrome (322222404222223).

The spelling of 200201202120221 in words is "two hundred trillion, two hundred one billion, two hundred two million, one hundred twenty thousand, two hundred twenty-one".