2021100212071 has 2 divisors, whose sum is σ = 2021100212072. Its totient is φ = 2021100212070.

The previous prime is 2021100211969. The next prime is 2021100212137. The reversal of 2021100212071 is 1702120011202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021100212071 - 2¹¹ = 2021100210023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021106212071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010550106035 + 1010550106036.

It is an arithmetic number, because the mean of its divisors is an integer number (1010550106036).

Almost surely, 2^{2021100212071} is an apocalyptic number.

2021100212071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021100212071 is an equidigital number, since it uses as much as digits as its factorization.

2021100212071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 2021100212071 its reverse (1702120011202), we get a palindrome (3723220223273).

The spelling of 2021100212071 in words is "two trillion, twenty-one billion, one hundred million, two hundred twelve thousand, seventy-one".