102021222223321 has 2 divisors, whose sum is σ = 102021222223322. Its totient is φ = 102021222223320.

The previous prime is 102021222223289. The next prime is 102021222223363. The reversal of 102021222223321 is 123322222120201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86208160977225 + 15813061246096 = 9284835^2 + 3976564^2 .

It is a cyclic number.

It is not a de Polignac number, because 102021222223321 - 2⁵ = 102021222223289 is a prime.

It is not a weakly prime, because it can be changed into another prime (102021622223321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010611111660 + 51010611111661.

It is an arithmetic number, because the mean of its divisors is an integer number (51010611111661).

Almost surely, 2^{102021222223321} is an apocalyptic number.

It is an amenable number.

102021222223321 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021222223321 is an equidigital number, since it uses as much as digits as its factorization.

102021222223321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 102021222223321 its reverse (123322222120201), we get a palindrome (225343444343522).

The spelling of 102021222223321 in words is "one hundred two trillion, twenty-one billion, two hundred twenty-two million, two hundred twenty-three thousand, three hundred twenty-one".