12722011 has 2 divisors, whose sum is σ = 12722012. Its totient is φ = 12722010.

The previous prime is 12722009. The next prime is 12722041. The reversal of 12722011 is 11022721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12722011 - 2¹ = 12722009 is a prime.

Together with 12722009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12722041) 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, 6361005 + 6361006.

It is an arithmetic number, because the mean of its divisors is an integer number (6361006).

Almost surely, 2^12722011 is an apocalyptic number.

12722011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12722011 is an equidigital number, since it uses as much as digits as its factorization.

12722011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 12722011 is about 3566.7928170837. The cubic root of 12722011 is about 233.4453650218.

Adding to 12722011 its reverse (11022721), we get a palindrome (23744732).

The spelling of 12722011 in words is "twelve million, seven hundred twenty-two thousand, eleven".