200201001221 has 12 divisors (see below), whose sum is σ = 217813158720. Its totient is φ = 183925057680.

The previous prime is 200201001157. The next prime is 200201001239. The reversal of 200201001221 is 122100102002.

It is a happy number.

200201001221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 200201001221 - 2⁶ = 200201001157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200201001251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2771501 + ... + 2842818.

It is an arithmetic number, because the mean of its divisors is an integer number (18151096560).

Almost surely, 2^200201001221 is an apocalyptic number.

It is an amenable number.

200201001221 is a deficient number, since it is larger than the sum of its proper divisors (17612157499).

200201001221 is a wasteful number, since it uses less digits than its factorization.

200201001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5614556 (or 5614543 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200201001221 its reverse (122100102002), we get a palindrome (322301103223).

The spelling of 200201001221 in words is "two hundred billion, two hundred one million, one thousand, two hundred twenty-one".