102102212089 has 2 divisors, whose sum is σ = 102102212090. Its totient is φ = 102102212088.

The previous prime is 102102212063. The next prime is 102102212119. The reversal of 102102212089 is 980212201201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63885090025 + 38217122064 = 252755^2 + 195492^2 .

It is a cyclic number.

It is not a de Polignac number, because 102102212089 - 2⁹ = 102102211577 is a prime.

It is not a weakly prime, because it can be changed into another prime (102102212059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051106044 + 51051106045.

It is an arithmetic number, because the mean of its divisors is an integer number (51051106045).

Almost surely, 2^102102212089 is an apocalyptic number.

It is an amenable number.

102102212089 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102212089 is an equidigital number, since it uses as much as digits as its factorization.

102102212089 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 28.

The spelling of 102102212089 in words is "one hundred two billion, one hundred two million, two hundred twelve thousand, eighty-nine".