2112206915807 has 2 divisors, whose sum is σ = 2112206915808. Its totient is φ = 2112206915806.

The previous prime is 2112206915771. The next prime is 2112206915857. The reversal of 2112206915807 is 7085196022112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112206915807 is a prime.

It is a super-2 number, since 2×2112206915807² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112206915857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056103457903 + 1056103457904.

It is an arithmetic number, because the mean of its divisors is an integer number (1056103457904).

Almost surely, 2^{2112206915807} is an apocalyptic number.

2112206915807 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112206915807 is an equidigital number, since it uses as much as digits as its factorization.

2112206915807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 2112206915807 in words is "two trillion, one hundred twelve billion, two hundred six million, nine hundred fifteen thousand, eight hundred seven".