1200102012209 has 2 divisors, whose sum is σ = 1200102012210. Its totient is φ = 1200102012208.

The previous prime is 1200102012191. The next prime is 1200102012233. The reversal of 1200102012209 is 9022102010021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1053811061809 + 146290950400 = 1026553^2 + 382480^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200102012209 - 2²⁴ = 1200085234993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200102012259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600051006104 + 600051006105.

It is an arithmetic number, because the mean of its divisors is an integer number (600051006105).

Almost surely, 2^{1200102012209} is an apocalyptic number.

It is an amenable number.

1200102012209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200102012209 is an equidigital number, since it uses as much as digits as its factorization.

1200102012209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 1200102012209 in words is "one trillion, two hundred billion, one hundred two million, twelve thousand, two hundred nine".