202001202001191 has 16 divisors (see below), whose sum is σ = 283510760797440. Its totient is φ = 127579570695360.

The previous prime is 202001202001187. The next prime is 202001202001273. The reversal of 202001202001191 is 191100202100202.

It is not a de Polignac number, because 202001202001191 - 2² = 202001202001187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202001202001171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99501646 + ... + 101511476.

It is an arithmetic number, because the mean of its divisors is an integer number (17719422549840).

Almost surely, 2^{202001202001191} is an apocalyptic number.

202001202001191 is a deficient number, since it is larger than the sum of its proper divisors (81509558796249).

202001202001191 is a wasteful number, since it uses less digits than its factorization.

202001202001191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773126.

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

Adding to 202001202001191 its reverse (191100202100202), we get a palindrome (393101404101393).

The spelling of 202001202001191 in words is "two hundred two trillion, one billion, two hundred two million, one thousand, one hundred ninety-one".