22211042197 has 2 divisors, whose sum is σ = 22211042198. Its totient is φ = 22211042196.

The previous prime is 22211042177. The next prime is 22211042213. The reversal of 22211042197 is 79124011222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18922478481 + 3288563716 = 137559^2 + 57346^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211042197 - 2²³ = 22202653589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211042107) 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, 11105521098 + 11105521099.

It is an arithmetic number, because the mean of its divisors is an integer number (11105521099).

Almost surely, 2^22211042197 is an apocalyptic number.

It is an amenable number.

22211042197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211042197 is an equidigital number, since it uses as much as digits as its factorization.

22211042197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 22211042197 in words is "twenty-two billion, two hundred eleven million, forty-two thousand, one hundred ninety-seven".