2121122701417 has 2 divisors, whose sum is σ = 2121122701418. Its totient is φ = 2121122701416.

The previous prime is 2121122701409. The next prime is 2121122701447. The reversal of 2121122701417 is 7141072211212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1536362729001 + 584759972416 = 1239501^2 + 764696^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121122701417 - 2³ = 2121122701409 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121122701447) 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, 1060561350708 + 1060561350709.

It is an arithmetic number, because the mean of its divisors is an integer number (1060561350709).

Almost surely, 2^{2121122701417} is an apocalyptic number.

It is an amenable number.

2121122701417 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121122701417 is an equidigital number, since it uses as much as digits as its factorization.

2121122701417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 31.

Adding to 2121122701417 its reverse (7141072211212), we get a palindrome (9262194912629).

The spelling of 2121122701417 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-two million, seven hundred one thousand, four hundred seventeen".