1202102200191 has 4 divisors (see below), whose sum is σ = 1602802933592. Its totient is φ = 801401466792.

The previous prime is 1202102200153. The next prime is 1202102200223. The reversal of 1202102200191 is 1910022012021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1202102200191 - 2²² = 1202098005887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202102200121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200350366696 + ... + 200350366701.

It is an arithmetic number, because the mean of its divisors is an integer number (400700733398).

Almost surely, 2^{1202102200191} is an apocalyptic number.

1202102200191 is a deficient number, since it is larger than the sum of its proper divisors (400700733401).

1202102200191 is an equidigital number, since it uses as much as digits as its factorization.

1202102200191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400700733400.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 1202102200191 in words is "one trillion, two hundred two billion, one hundred two million, two hundred thousand, one hundred ninety-one".