2122327261 has 2 divisors, whose sum is σ = 2122327262. Its totient is φ = 2122327260.

The previous prime is 2122327247. The next prime is 2122327267. The reversal of 2122327261 is 1627232212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1274061636 + 848265625 = 35694^2 + 29125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122327261 - 2¹⁹ = 2121802973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122327267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061163630 + 1061163631.

It is an arithmetic number, because the mean of its divisors is an integer number (1061163631).

Almost surely, 2^2122327261 is an apocalyptic number.

It is an amenable number.

2122327261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122327261 is an equidigital number, since it uses as much as digits as its factorization.

2122327261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 2122327261 is about 46068.7232403938. The cubic root of 2122327261 is about 1285.1015602026.

Adding to 2122327261 its reverse (1627232212), we get a palindrome (3749559473).

It can be divided in two parts, 21223 and 27261, that added together give a palindrome (48484).

The spelling of 2122327261 in words is "two billion, one hundred twenty-two million, three hundred twenty-seven thousand, two hundred sixty-one".