100020200210221 has 2 divisors, whose sum is σ = 100020200210222. Its totient is φ = 100020200210220.

The previous prime is 100020200210209. The next prime is 100020200210233. The reversal of 100020200210221 is 122012002020001.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (100020200210209) and next prime (100020200210233).

It can be written as a sum of positive squares in only one way, i.e., 65857461098121 + 34162739112100 = 8115261^2 + 5844890^2 .

It is an emirp because it is prime and its reverse (122012002020001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100020200210221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100020200210251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010100105110 + 50010100105111.

It is an arithmetic number, because the mean of its divisors is an integer number (50010100105111).

Almost surely, 2^{100020200210221} is an apocalyptic number.

It is an amenable number.

100020200210221 is a deficient number, since it is larger than the sum of its proper divisors (1).

100020200210221 is an equidigital number, since it uses as much as digits as its factorization.

100020200210221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 100020200210221 its reverse (122012002020001), we get a palindrome (222032202230222).

The spelling of 100020200210221 in words is "one hundred trillion, twenty billion, two hundred million, two hundred ten thousand, two hundred twenty-one".