2100120001127 has 2 divisors, whose sum is σ = 2100120001128. Its totient is φ = 2100120001126.

The previous prime is 2100120001051. The next prime is 2100120001129. The reversal of 2100120001127 is 7211000210012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100120001127 - 2²⁶ = 2100052892263 is a prime.

Together with 2100120001129, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100120001129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050060000563 + 1050060000564.

It is an arithmetic number, because the mean of its divisors is an integer number (1050060000564).

Almost surely, 2^{2100120001127} is an apocalyptic number.

2100120001127 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100120001127 is an equidigital number, since it uses as much as digits as its factorization.

2100120001127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 2100120001127 its reverse (7211000210012), we get a palindrome (9311120211139).

The spelling of 2100120001127 in words is "two trillion, one hundred billion, one hundred twenty million, one thousand, one hundred twenty-seven".