2122848661 has 2 divisors, whose sum is σ = 2122848662. Its totient is φ = 2122848660.

The previous prime is 2122848571. The next prime is 2122848713. The reversal of 2122848661 is 1668482212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1142845636 + 980003025 = 33806^2 + 31305^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122848661 - 2⁹ = 2122848149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122848461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061424330 + 1061424331.

It is an arithmetic number, because the mean of its divisors is an integer number (1061424331).

Almost surely, 2^2122848661 is an apocalyptic number.

It is an amenable number.

2122848661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122848661 is an equidigital number, since it uses as much as digits as its factorization.

2122848661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 40.

The square root of 2122848661 is about 46074.3818298195. The cubic root of 2122848661 is about 1285.2067901392.

The spelling of 2122848661 in words is "two billion, one hundred twenty-two million, eight hundred forty-eight thousand, six hundred sixty-one".