2120112021187 has 2 divisors, whose sum is σ = 2120112021188. Its totient is φ = 2120112021186.

The previous prime is 2120112021163. The next prime is 2120112021221. The reversal of 2120112021187 is 7811202110212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120112021187 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120112021107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060056010593 + 1060056010594.

It is an arithmetic number, because the mean of its divisors is an integer number (1060056010594).

Almost surely, 2^{2120112021187} is an apocalyptic number.

2120112021187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120112021187 is an equidigital number, since it uses as much as digits as its factorization.

2120112021187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 2120112021187 its reverse (7811202110212), we get a palindrome (9931314131399).

The spelling of 2120112021187 in words is "two trillion, one hundred twenty billion, one hundred twelve million, twenty-one thousand, one hundred eighty-seven".