1210201201191 has 4 divisors (see below), whose sum is σ = 1613601601592. Its totient is φ = 806800800792.

The previous prime is 1210201201087. The next prime is 1210201201241. The reversal of 1210201201191 is 1911021020121.

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

It is not a de Polignac number, because 1210201201191 - 2²⁵ = 1210167646759 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 (1210201206191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201700200196 + ... + 201700200201.

It is an arithmetic number, because the mean of its divisors is an integer number (403400400398).

Almost surely, 2^{1210201201191} is an apocalyptic number.

1210201201191 is a deficient number, since it is larger than the sum of its proper divisors (403400400401).

1210201201191 is an equidigital number, since it uses as much as digits as its factorization.

1210201201191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403400400400.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 1210201201191 in words is "one trillion, two hundred ten billion, two hundred one million, two hundred one thousand, one hundred ninety-one".