22012122289 has 2 divisors, whose sum is σ = 22012122290. Its totient is φ = 22012122288.

The previous prime is 22012122277. The next prime is 22012122323. The reversal of 22012122289 is 98222121022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21833017600 + 179104689 = 147760^2 + 13383^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012122289 - 2⁷ = 22012122161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22012122289.

It is not a weakly prime, because it can be changed into another prime (22012122089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006061144 + 11006061145.

It is an arithmetic number, because the mean of its divisors is an integer number (11006061145).

Almost surely, 2^22012122289 is an apocalyptic number.

It is an amenable number.

22012122289 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012122289 is an equidigital number, since it uses as much as digits as its factorization.

22012122289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 22012122289 in words is "twenty-two billion, twelve million, one hundred twenty-two thousand, two hundred eighty-nine".