10201200221 has 2 divisors, whose sum is σ = 10201200222. Its totient is φ = 10201200220.

The previous prime is 10201200199. The next prime is 10201200223. The reversal of 10201200221 is 12200210201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7741536196 + 2459664025 = 87986^2 + 49595^2 .

It is a cyclic number.

It is not a de Polignac number, because 10201200221 - 2³⁰ = 9127458397 is a prime.

Together with 10201200223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10201200223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100600110 + 5100600111.

It is an arithmetic number, because the mean of its divisors is an integer number (5100600111).

Almost surely, 2^10201200221 is an apocalyptic number.

It is an amenable number.

10201200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10201200221 is an equidigital number, since it uses as much as digits as its factorization.

10201200221 is an evil number, because the sum of its binary digits is even.

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

Adding to 10201200221 its reverse (12200210201), we get a palindrome (22401410422).

The spelling of 10201200221 in words is "ten billion, two hundred one million, two hundred thousand, two hundred twenty-one".