2021120200191 has 8 divisors (see below), whose sum is σ = 2721508388784. Its totient is φ = 1334072739200.

The previous prime is 2021120200171. The next prime is 2021120200193. The reversal of 2021120200191 is 1910020211202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021120200191 - 2¹¹ = 2021120198143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021120200193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3335181546 + ... + 3335182151.

It is an arithmetic number, because the mean of its divisors is an integer number (340188548598).

Almost surely, 2^{2021120200191} is an apocalyptic number.

2021120200191 is a deficient number, since it is larger than the sum of its proper divisors (700388188593).

2021120200191 is a wasteful number, since it uses less digits than its factorization.

2021120200191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6670363801.

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

Adding to 2021120200191 its reverse (1910020211202), we get a palindrome (3931140411393).

The spelling of 2021120200191 in words is "two trillion, twenty-one billion, one hundred twenty million, two hundred thousand, one hundred ninety-one".