12722045009 has 2 divisors, whose sum is σ = 12722045010. Its totient is φ = 12722045008.

The previous prime is 12722044987. The next prime is 12722045087. The reversal of 12722045009 is 90054022721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12381457984 + 340587025 = 111272^2 + 18455^2 .

It is a cyclic number.

It is not a de Polignac number, because 12722045009 - 2²⁴ = 12705267793 is a prime.

It is a super-2 number, since 2×12722045009² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12722045909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6361022504 + 6361022505.

It is an arithmetic number, because the mean of its divisors is an integer number (6361022505).

Almost surely, 2^12722045009 is an apocalyptic number.

It is an amenable number.

12722045009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12722045009 is an equidigital number, since it uses as much as digits as its factorization.

12722045009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 12722045009 in words is "twelve billion, seven hundred twenty-two million, forty-five thousand, nine".