100102020000221 has 2 divisors, whose sum is σ = 100102020000222. Its totient is φ = 100102020000220.

The previous prime is 100102020000217. The next prime is 100102020000233. The reversal of 100102020000221 is 122000020201001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89106236952100 + 10995783048121 = 9439610^2 + 3315989^2 .

It is an emirp because it is prime and its reverse (122000020201001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100102020000221 - 2² = 100102020000217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100102020009221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50051010000110 + 50051010000111.

It is an arithmetic number, because the mean of its divisors is an integer number (50051010000111).

Almost surely, 2^{100102020000221} is an apocalyptic number.

It is an amenable number.

100102020000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

100102020000221 is an equidigital number, since it uses as much as digits as its factorization.

100102020000221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 100102020000221 its reverse (122000020201001), we get a palindrome (222102040201222).

The spelling of 100102020000221 in words is "one hundred trillion, one hundred two billion, twenty million, two hundred twenty-one", and thus it is an aban number.