22120345633 has 2 divisors, whose sum is σ = 22120345634. Its totient is φ = 22120345632.

The previous prime is 22120345627. The next prime is 22120345679. The reversal of 22120345633 is 33654302122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19461087009 + 2659258624 = 139503^2 + 51568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22120345633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22120345595 and 22120345604.

It is not a weakly prime, because it can be changed into another prime (22120345693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060172816 + 11060172817.

It is an arithmetic number, because the mean of its divisors is an integer number (11060172817).

Almost surely, 2^22120345633 is an apocalyptic number.

It is an amenable number.

22120345633 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120345633 is an equidigital number, since it uses as much as digits as its factorization.

22120345633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 22120345633 its reverse (33654302122), we get a palindrome (55774647755).

The spelling of 22120345633 in words is "twenty-two billion, one hundred twenty million, three hundred forty-five thousand, six hundred thirty-three".