102221556433 has 2 divisors, whose sum is σ = 102221556434. Its totient is φ = 102221556432.

The previous prime is 102221556397. The next prime is 102221556439. The reversal of 102221556433 is 334655122201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95315447824 + 6906108609 = 308732^2 + 83103^2 .

It is a cyclic number.

It is not a de Polignac number, because 102221556433 - 2¹³ = 102221548241 is a prime.

It is not a weakly prime, because it can be changed into another prime (102221556439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110778216 + 51110778217.

It is an arithmetic number, because the mean of its divisors is an integer number (51110778217).

Almost surely, 2^102221556433 is an apocalyptic number.

It is an amenable number.

102221556433 is a deficient number, since it is larger than the sum of its proper divisors (1).

102221556433 is an equidigital number, since it uses as much as digits as its factorization.

102221556433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 102221556433 its reverse (334655122201), we get a palindrome (436876678634).

The spelling of 102221556433 in words is "one hundred two billion, two hundred twenty-one million, five hundred fifty-six thousand, four hundred thirty-three".