2122120021271 has 2 divisors, whose sum is σ = 2122120021272. Its totient is φ = 2122120021270.

The previous prime is 2122120021183. The next prime is 2122120021319. The reversal of 2122120021271 is 1721200212212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122120021271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122120021871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061060010635 + 1061060010636.

It is an arithmetic number, because the mean of its divisors is an integer number (1061060010636).

Almost surely, 2^{2122120021271} is an apocalyptic number.

2122120021271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122120021271 is an equidigital number, since it uses as much as digits as its factorization.

2122120021271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 2122120021271 its reverse (1721200212212), we get a palindrome (3843320233483).

The spelling of 2122120021271 in words is "two trillion, one hundred twenty-two billion, one hundred twenty million, twenty-one thousand, two hundred seventy-one".