2122120121287 has 2 divisors, whose sum is σ = 2122120121288. Its totient is φ = 2122120121286.

The previous prime is 2122120121249. The next prime is 2122120121311. The reversal of 2122120121287 is 7821210212212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2122120121287 - 2⁷ = 2122120121159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122120121237) 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, 1061060060643 + 1061060060644.

It is an arithmetic number, because the mean of its divisors is an integer number (1061060060644).

Almost surely, 2^{2122120121287} is an apocalyptic number.

2122120121287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122120121287 is an equidigital number, since it uses as much as digits as its factorization.

2122120121287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 31.

Adding to 2122120121287 its reverse (7821210212212), we get a palindrome (9943330333499).

The spelling of 2122120121287 in words is "two trillion, one hundred twenty-two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred eighty-seven".