22243010077 has 2 divisors, whose sum is σ = 22243010078. Its totient is φ = 22243010076.

The previous prime is 22243010071. The next prime is 22243010159. The reversal of 22243010077 is 77001034222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20480185881 + 1762824196 = 143109^2 + 41986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22243010077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22243010071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11121505038 + 11121505039.

It is an arithmetic number, because the mean of its divisors is an integer number (11121505039).

Almost surely, 2^22243010077 is an apocalyptic number.

It is an amenable number.

22243010077 is a deficient number, since it is larger than the sum of its proper divisors (1).

22243010077 is an equidigital number, since it uses as much as digits as its factorization.

22243010077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

Adding to 22243010077 its reverse (77001034222), we get a palindrome (99244044299).

The spelling of 22243010077 in words is "twenty-two billion, two hundred forty-three million, ten thousand, seventy-seven".