2121026201171 has 2 divisors, whose sum is σ = 2121026201172. Its totient is φ = 2121026201170.

The previous prime is 2121026201123. The next prime is 2121026201213. The reversal of 2121026201171 is 1711026201212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121026201171 - 2¹⁸ = 2121025939027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2121026201171.

It is not a weakly prime, because it can be changed into another prime (2121026201471) 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, 1060513100585 + 1060513100586.

It is an arithmetic number, because the mean of its divisors is an integer number (1060513100586).

Almost surely, 2^{2121026201171} is an apocalyptic number.

2121026201171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121026201171 is an equidigital number, since it uses as much as digits as its factorization.

2121026201171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

The spelling of 2121026201171 in words is "two trillion, one hundred twenty-one billion, twenty-six million, two hundred one thousand, one hundred seventy-one".