121013102102209 has 2 divisors, whose sum is σ = 121013102102210. Its totient is φ = 121013102102208.

The previous prime is 121013102102129. The next prime is 121013102102267. The reversal of 121013102102209 is 902201201310121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107646912341809 + 13366189760400 = 10375303^2 + 3655980^2 .

It is a cyclic number.

It is not a de Polignac number, because 121013102102209 - 2¹¹ = 121013102100161 is a prime.

It is not a weakly prime, because it can be changed into another prime (121013102112209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506551051104 + 60506551051105.

It is an arithmetic number, because the mean of its divisors is an integer number (60506551051105).

Almost surely, 2^{121013102102209} is an apocalyptic number.

It is an amenable number.

121013102102209 is a deficient number, since it is larger than the sum of its proper divisors (1).

121013102102209 is an equidigital number, since it uses as much as digits as its factorization.

121013102102209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 121013102102209 in words is "one hundred twenty-one trillion, thirteen billion, one hundred two million, one hundred two thousand, two hundred nine".