1202002201009 has 2 divisors, whose sum is σ = 1202002201010. Its totient is φ = 1202002201008.

The previous prime is 1202002200989. The next prime is 1202002201087. The reversal of 1202002201009 is 9001022002021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 981011011600 + 220991189409 = 990460^2 + 470097^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202002201009 - 2¹¹ = 1202002198961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202002201709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601001100504 + 601001100505.

It is an arithmetic number, because the mean of its divisors is an integer number (601001100505).

Almost surely, 2^{1202002201009} is an apocalyptic number.

It is an amenable number.

1202002201009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202002201009 is an equidigital number, since it uses as much as digits as its factorization.

1202002201009 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 19.

The spelling of 1202002201009 in words is "one trillion, two hundred two billion, two million, two hundred one thousand, nine".