2122605697 has 2 divisors, whose sum is σ = 2122605698. Its totient is φ = 2122605696.

The previous prime is 2122605659. The next prime is 2122605713. The reversal of 2122605697 is 7965062212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2010266896 + 112338801 = 44836^2 + 10599^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122605697 - 2¹¹ = 2122603649 is a prime.

It is not a weakly prime, because it can be changed into another prime (2122605607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061302848 + 1061302849.

It is an arithmetic number, because the mean of its divisors is an integer number (1061302849).

Almost surely, 2^2122605697 is an apocalyptic number.

It is an amenable number.

2122605697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122605697 is an equidigital number, since it uses as much as digits as its factorization.

2122605697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 2122605697 is about 46071.7451047820. The cubic root of 2122605697 is about 1285.1577568282.

The spelling of 2122605697 in words is "two billion, one hundred twenty-two million, six hundred five thousand, six hundred ninety-seven".