2120056667 has 2 divisors, whose sum is σ = 2120056668. Its totient is φ = 2120056666.

The previous prime is 2120056661. The next prime is 2120056669. The reversal of 2120056667 is 7666500212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120056667 - 2¹⁴ = 2120040283 is a prime.

It is a super-2 number, since 2×2120056667² = 8989280542582297778, which contains 22 as substring.

Together with 2120056669, 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 (2120056661) 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, 1060028333 + 1060028334.

It is an arithmetic number, because the mean of its divisors is an integer number (1060028334).

Almost surely, 2^2120056667 is an apocalyptic number.

2120056667 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120056667 is an equidigital number, since it uses as much as digits as its factorization.

2120056667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 2120056667 is about 46044.0730930703. The cubic root of 2120056667 is about 1284.6431035574.

Adding to 2120056667 its reverse (7666500212), we get a palindrome (9786556879).

The spelling of 2120056667 in words is "two billion, one hundred twenty million, fifty-six thousand, six hundred sixty-seven".