102021222110201 has 2 divisors, whose sum is σ = 102021222110202. Its totient is φ = 102021222110200.

The previous prime is 102021222110189. The next prime is 102021222110261. The reversal of 102021222110201 is 102011222120201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58836938434576 + 43184283675625 = 7670524^2 + 6571475^2 .

It is an emirp because it is prime and its reverse (102011222120201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102021222110201 - 2³⁰ = 102020148368377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102021222110201.

It is not a weakly prime, because it can be changed into another prime (102021222110261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010611055100 + 51010611055101.

It is an arithmetic number, because the mean of its divisors is an integer number (51010611055101).

Almost surely, 2^{102021222110201} is an apocalyptic number.

It is an amenable number.

102021222110201 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021222110201 is an equidigital number, since it uses as much as digits as its factorization.

102021222110201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102021222110201 its reverse (102011222120201), we get a palindrome (204032444230402).

It can be divided in two parts, 102021 and 222110201, that added together give a palindrome (222212222).

The spelling of 102021222110201 in words is "one hundred two trillion, twenty-one billion, two hundred twenty-two million, one hundred ten thousand, two hundred one".