22211111077 has 2 divisors, whose sum is σ = 22211111078. Its totient is φ = 22211111076.

The previous prime is 22211111071. The next prime is 22211111113. The reversal of 22211111077 is 77011111222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19556903716 + 2654207361 = 139846^2 + 51519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22211111077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211111071) 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, 11105555538 + 11105555539.

It is an arithmetic number, because the mean of its divisors is an integer number (11105555539).

Almost surely, 2^22211111077 is an apocalyptic number.

It is an amenable number.

22211111077 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211111077 is an equidigital number, since it uses as much as digits as its factorization.

22211111077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 25.

Adding to 22211111077 its reverse (77011111222), we get a palindrome (99222222299).

The spelling of 22211111077 in words is "twenty-two billion, two hundred eleven million, one hundred eleven thousand, seventy-seven".