22269746561 has 2 divisors, whose sum is σ = 22269746562. Its totient is φ = 22269746560.

The previous prime is 22269746503. The next prime is 22269746617. The reversal of 22269746561 is 16564796222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12957496561 + 9312250000 = 113831^2 + 96500^2 .

It is a cyclic number.

It is not a de Polignac number, because 22269746561 - 2¹⁴ = 22269730177 is a prime.

It is a super-2 number, since 2×22269746561² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22269746761) 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, 11134873280 + 11134873281.

It is an arithmetic number, because the mean of its divisors is an integer number (11134873281).

Almost surely, 2^22269746561 is an apocalyptic number.

It is an amenable number.

22269746561 is a deficient number, since it is larger than the sum of its proper divisors (1).

22269746561 is an equidigital number, since it uses as much as digits as its factorization.

22269746561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 50.

The spelling of 22269746561 in words is "twenty-two billion, two hundred sixty-nine million, seven hundred forty-six thousand, five hundred sixty-one".