22040685229 has 2 divisors, whose sum is σ = 22040685230. Its totient is φ = 22040685228.

The previous prime is 22040685209. The next prime is 22040685239. The reversal of 22040685229 is 92258604022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20486196900 + 1554488329 = 143130^2 + 39427^2 .

It is a cyclic number.

It is not a de Polignac number, because 22040685229 - 2⁹ = 22040684717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22040685191 and 22040685200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22040685209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11020342614 + 11020342615.

It is an arithmetic number, because the mean of its divisors is an integer number (11020342615).

Almost surely, 2^22040685229 is an apocalyptic number.

It is an amenable number.

22040685229 is a deficient number, since it is larger than the sum of its proper divisors (1).

22040685229 is an equidigital number, since it uses as much as digits as its factorization.

22040685229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 22040685229 in words is "twenty-two billion, forty million, six hundred eighty-five thousand, two hundred twenty-nine".