102220121189 has 2 divisors, whose sum is σ = 102220121190. Its totient is φ = 102220121188.

The previous prime is 102220121177. The next prime is 102220121197. The reversal of 102220121189 is 981121022201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92933522500 + 9286598689 = 304850^2 + 96367^2 .

It is an emirp because it is prime and its reverse (981121022201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102220121189 - 2⁴ = 102220121173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102220121119) 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, 51110060594 + 51110060595.

It is an arithmetic number, because the mean of its divisors is an integer number (51110060595).

Almost surely, 2^102220121189 is an apocalyptic number.

It is an amenable number.

102220121189 is a deficient number, since it is larger than the sum of its proper divisors (1).

102220121189 is an equidigital number, since it uses as much as digits as its factorization.

102220121189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 102220121189 in words is "one hundred two billion, two hundred twenty million, one hundred twenty-one thousand, one hundred eighty-nine".