2074720810121 has 2 divisors, whose sum is σ = 2074720810122. Its totient is φ = 2074720810120.

The previous prime is 2074720810117. The next prime is 2074720810171. The reversal of 2074720810121 is 1210180274702.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1431765406096 + 642955404025 = 1196564^2 + 801845^2 .

It is a cyclic number.

It is not a de Polignac number, because 2074720810121 - 2² = 2074720810117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2074720810171) 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, 1037360405060 + 1037360405061.

It is an arithmetic number, because the mean of its divisors is an integer number (1037360405061).

Almost surely, 2^{2074720810121} is an apocalyptic number.

It is an amenable number.

2074720810121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2074720810121 is an equidigital number, since it uses as much as digits as its factorization.

2074720810121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544, while the sum is 35.

The spelling of 2074720810121 in words is "two trillion, seventy-four billion, seven hundred twenty million, eight hundred ten thousand, one hundred twenty-one".