2101120122071 has 2 divisors, whose sum is σ = 2101120122072. Its totient is φ = 2101120122070.

The previous prime is 2101120122067. The next prime is 2101120122131. The reversal of 2101120122071 is 1702210211012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101120122071 - 2² = 2101120122067 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101120122271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050560061035 + 1050560061036.

It is an arithmetic number, because the mean of its divisors is an integer number (1050560061036).

Almost surely, 2^{2101120122071} is an apocalyptic number.

2101120122071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101120122071 is an equidigital number, since it uses as much as digits as its factorization.

2101120122071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 2101120122071 its reverse (1702210211012), we get a palindrome (3803330333083).

The spelling of 2101120122071 in words is "two trillion, one hundred one billion, one hundred twenty million, one hundred twenty-two thousand, seventy-one".