2112166211387 has 2 divisors, whose sum is σ = 2112166211388. Its totient is φ = 2112166211386.

The previous prime is 2112166211333. The next prime is 2112166211411. The reversal of 2112166211387 is 7831126612112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112166211387 is a prime.

It is a super-2 number, since 2×2112166211387² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2112166211327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056083105693 + 1056083105694.

It is an arithmetic number, because the mean of its divisors is an integer number (1056083105694).

Almost surely, 2^{2112166211387} is an apocalyptic number.

2112166211387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112166211387 is an equidigital number, since it uses as much as digits as its factorization.

2112166211387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 41.

The spelling of 2112166211387 in words is "two trillion, one hundred twelve billion, one hundred sixty-six million, two hundred eleven thousand, three hundred eighty-seven".