1202200002191 has 2 divisors, whose sum is σ = 1202200002192. Its totient is φ = 1202200002190.

The previous prime is 1202200002163. The next prime is 1202200002233. The reversal of 1202200002191 is 1912000022021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202200002191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202200002151) 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, 601100001095 + 601100001096.

It is an arithmetic number, because the mean of its divisors is an integer number (601100001096).

Almost surely, 2^{1202200002191} is an apocalyptic number.

1202200002191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202200002191 is an equidigital number, since it uses as much as digits as its factorization.

1202200002191 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 1202200002191 in words is "one trillion, two hundred two billion, two hundred million, two thousand, one hundred ninety-one".