102221221000201 has 4 divisors (see below), whose sum is σ = 102225430950804. Its totient is φ = 102217011049600.

The previous prime is 102221221000193. The next prime is 102221221000243. The reversal of 102221221000201 is 102000122122201.

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 84819016156176 + 17402204844025 = 9209724^2 + 4171595^2 .

It is a cyclic number.

It is not a de Polignac number, because 102221221000201 - 2³ = 102221221000193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102221221000271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2104938880 + ... + 2104987441.

It is an arithmetic number, because the mean of its divisors is an integer number (25556357737701).

Almost surely, 2^{102221221000201} is an apocalyptic number.

It is an amenable number.

102221221000201 is a deficient number, since it is larger than the sum of its proper divisors (4209950603).

102221221000201 is an equidigital number, since it uses as much as digits as its factorization.

102221221000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209950602.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102221221000201 its reverse (102000122122201), we get a palindrome (204221343122402).

The spelling of 102221221000201 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred one", and thus it is an aban number.