102102222109 has 2 divisors, whose sum is σ = 102102222110. Its totient is φ = 102102222108.

The previous prime is 102102222067. The next prime is 102102222119. The reversal of 102102222109 is 901222201201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89089116484 + 13013105625 = 298478^2 + 114075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102102222109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102102222109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102102222119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051111054 + 51051111055.

It is an arithmetic number, because the mean of its divisors is an integer number (51051111055).

Almost surely, 2^102102222109 is an apocalyptic number.

It is an amenable number.

102102222109 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102222109 is an equidigital number, since it uses as much as digits as its factorization.

102102222109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 102102222109 in words is "one hundred two billion, one hundred two million, two hundred twenty-two thousand, one hundred nine".