201000010202221 has 4 divisors (see below), whose sum is σ = 201078864661500. Its totient is φ = 200921155742944.

The previous prime is 201000010202219. The next prime is 201000010202237. The reversal of 201000010202221 is 122202010000102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169114055236996 + 31885954965225 = 13004386^2 + 5646765^2 .

It is a cyclic number.

It is not a de Polignac number, because 201000010202221 - 2¹ = 201000010202219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000010202821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39427225816 + ... + 39427230913.

It is an arithmetic number, because the mean of its divisors is an integer number (50269716165375).

Almost surely, 2^{201000010202221} is an apocalyptic number.

It is an amenable number.

201000010202221 is a deficient number, since it is larger than the sum of its proper divisors (78854459279).

201000010202221 is an equidigital number, since it uses as much as digits as its factorization.

201000010202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78854459278.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 201000010202221 its reverse (122202010000102), we get a palindrome (323202020202323).

The spelling of 201000010202221 in words is "two hundred one trillion, ten million, two hundred two thousand, two hundred twenty-one".