2122444771 has 2 divisors, whose sum is σ = 2122444772. Its totient is φ = 2122444770.

The previous prime is 2122444769. The next prime is 2122444777. The reversal of 2122444771 is 1774442212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122444771 - 2¹ = 2122444769 is a prime.

Together with 2122444769, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2122444777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061222385 + 1061222386.

It is an arithmetic number, because the mean of its divisors is an integer number (1061222386).

Almost surely, 2^2122444771 is an apocalyptic number.

2122444771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122444771 is an equidigital number, since it uses as much as digits as its factorization.

2122444771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25088, while the sum is 34.

The square root of 2122444771 is about 46069.9985999566. The cubic root of 2122444771 is about 1285.1252777979.

Adding to 2122444771 its reverse (1774442212), we get a palindrome (3896886983).

The spelling of 2122444771 in words is "two billion, one hundred twenty-two million, four hundred forty-four thousand, seven hundred seventy-one".