22217022211 has 2 divisors, whose sum is σ = 22217022212. Its totient is φ = 22217022210.

The previous prime is 22217022197. The next prime is 22217022229. The reversal of 22217022211 is 11222071222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22217022211 - 2⁷ = 22217022083 is a prime.

It is not a weakly prime, because it can be changed into another prime (22217022511) 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, 11108511105 + 11108511106.

It is an arithmetic number, because the mean of its divisors is an integer number (11108511106).

Almost surely, 2^22217022211 is an apocalyptic number.

22217022211 is a deficient number, since it is larger than the sum of its proper divisors (1).

22217022211 is an equidigital number, since it uses as much as digits as its factorization.

22217022211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 22217022211 its reverse (11222071222), we get a palindrome (33439093433).

The spelling of 22217022211 in words is "twenty-two billion, two hundred seventeen million, twenty-two thousand, two hundred eleven".