20223222077 has 2 divisors, whose sum is σ = 20223222078. Its totient is φ = 20223222076.

The previous prime is 20223222043. The next prime is 20223222163. The reversal of 20223222077 is 77022232202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18414761401 + 1808460676 = 135701^2 + 42526^2 .

It is a cyclic number.

It is not a de Polignac number, because 20223222077 - 2⁶ = 20223222013 is a prime.

It is a super-2 number, since 2×20223222077² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20223222377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111611038 + 10111611039.

It is an arithmetic number, because the mean of its divisors is an integer number (10111611039).

Almost surely, 2^20223222077 is an apocalyptic number.

It is an amenable number.

20223222077 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223222077 is an equidigital number, since it uses as much as digits as its factorization.

20223222077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 29.

Adding to 20223222077 its reverse (77022232202), we get a palindrome (97245454279).

The spelling of 20223222077 in words is "twenty billion, two hundred twenty-three million, two hundred twenty-two thousand, seventy-seven".