2021111009107 has 2 divisors, whose sum is σ = 2021111009108. Its totient is φ = 2021111009106.

The previous prime is 2021111009051. The next prime is 2021111009171. The reversal of 2021111009107 is 7019001111202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021111009107 - 2⁷ = 2021111008979 is a prime.

It is a super-2 number, since 2×2021111009107² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2021111009807) 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, 1010555504553 + 1010555504554.

It is an arithmetic number, because the mean of its divisors is an integer number (1010555504554).

Almost surely, 2^{2021111009107} is an apocalyptic number.

2021111009107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021111009107 is an equidigital number, since it uses as much as digits as its factorization.

2021111009107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 25.

The spelling of 2021111009107 in words is "two trillion, twenty-one billion, one hundred eleven million, nine thousand, one hundred seven".