2021096747771 has 2 divisors, whose sum is σ = 2021096747772. Its totient is φ = 2021096747770.

The previous prime is 2021096747749. The next prime is 2021096747783. The reversal of 2021096747771 is 1777476901202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021096747771 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021096707771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010548373885 + 1010548373886.

It is an arithmetic number, because the mean of its divisors is an integer number (1010548373886).

Almost surely, 2^{2021096747771} is an apocalyptic number.

2021096747771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021096747771 is an equidigital number, since it uses as much as digits as its factorization.

2021096747771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2074464, while the sum is 53.

The spelling of 2021096747771 in words is "two trillion, twenty-one billion, ninety-six million, seven hundred forty-seven thousand, seven hundred seventy-one".