2021941596091 has 4 divisors (see below), whose sum is σ = 2024867706184. Its totient is φ = 2019015486000.

The previous prime is 2021941596089. The next prime is 2021941596107. The reversal of 2021941596091 is 1906951491202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2021941596091 - 2¹ = 2021941596089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021941596491) 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, 1463054010 + ... + 1463055391.

It is an arithmetic number, because the mean of its divisors is an integer number (506216926546).

Almost surely, 2^{2021941596091} is an apocalyptic number.

2021941596091 is a deficient number, since it is larger than the sum of its proper divisors (2926110093).

2021941596091 is an equidigital number, since it uses as much as digits as its factorization.

2021941596091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926110092.

The product of its (nonzero) digits is 349920, while the sum is 49.

The spelling of 2021941596091 in words is "two trillion, twenty-one billion, nine hundred forty-one million, five hundred ninety-six thousand, ninety-one".