2111121971027 has 2 divisors, whose sum is σ = 2111121971028. Its totient is φ = 2111121971026.

The previous prime is 2111121970987. The next prime is 2111121971039. The reversal of 2111121971027 is 7201791211112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111121971027 - 2¹⁰ = 2111121970003 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111121931027) 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, 1055560985513 + 1055560985514.

It is an arithmetic number, because the mean of its divisors is an integer number (1055560985514).

Almost surely, 2^{2111121971027} is an apocalyptic number.

2111121971027 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111121971027 is an equidigital number, since it uses as much as digits as its factorization.

2111121971027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 35.

The spelling of 2111121971027 in words is "two trillion, one hundred eleven billion, one hundred twenty-one million, nine hundred seventy-one thousand, twenty-seven".