1202100008191 has 2 divisors, whose sum is σ = 1202100008192. Its totient is φ = 1202100008190.

The previous prime is 1202100008183. The next prime is 1202100008269. The reversal of 1202100008191 is 1918000012021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1202100008191 - 2³ = 1202100008183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202100078191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601050004095 + 601050004096.

It is an arithmetic number, because the mean of its divisors is an integer number (601050004096).

Almost surely, 2^{1202100008191} is an apocalyptic number.

1202100008191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202100008191 is an equidigital number, since it uses as much as digits as its factorization.

1202100008191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 1202100008191 in words is "one trillion, two hundred two billion, one hundred million, eight thousand, one hundred ninety-one".