2021022302009 has 2 divisors, whose sum is σ = 2021022302010. Its totient is φ = 2021022302008.

The previous prime is 2021022301937. The next prime is 2021022302011. The reversal of 2021022302009 is 9002032201202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1056315283984 + 964707018025 = 1027772^2 + 982195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021022302009 is a prime.

It is a super-2 number, since 2×2021022302009² (a number of 25 digits) contains 22 as substring.

Together with 2021022302011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2021022302069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010511151004 + 1010511151005.

It is an arithmetic number, because the mean of its divisors is an integer number (1010511151005).

Almost surely, 2^{2021022302009} is an apocalyptic number.

It is an amenable number.

2021022302009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021022302009 is an equidigital number, since it uses as much as digits as its factorization.

2021022302009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 2021022302009 in words is "two trillion, twenty-one billion, twenty-two million, three hundred two thousand, nine".