22189756969 has 2 divisors, whose sum is σ = 22189756970. Its totient is φ = 22189756968.

The previous prime is 22189756931. The next prime is 22189757027. The reversal of 22189756969 is 96965798122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21730297744 + 459459225 = 147412^2 + 21435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22189756969 is a prime.

It is a super-2 number, since 2×22189756969² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22189756969.

It is not a weakly prime, because it can be changed into another prime (22189750969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11094878484 + 11094878485.

It is an arithmetic number, because the mean of its divisors is an integer number (11094878485).

Almost surely, 2^22189756969 is an apocalyptic number.

It is an amenable number.

22189756969 is a deficient number, since it is larger than the sum of its proper divisors (1).

22189756969 is an equidigital number, since it uses as much as digits as its factorization.

22189756969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29393280, while the sum is 64.

The spelling of 22189756969 in words is "twenty-two billion, one hundred eighty-nine million, seven hundred fifty-six thousand, nine hundred sixty-nine".