181822022219 has 2 divisors, whose sum is σ = 181822022220. Its totient is φ = 181822022218.

The previous prime is 181822022191. The next prime is 181822022237. The reversal of 181822022219 is 912220228181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 181822022219 - 2²⁴ = 181805245003 is a prime.

It is a super-2 number, since 2×181822022219² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (181822012219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90911011109 + 90911011110.

It is an arithmetic number, because the mean of its divisors is an integer number (90911011110).

Almost surely, 2^181822022219 is an apocalyptic number.

181822022219 is a deficient number, since it is larger than the sum of its proper divisors (1).

181822022219 is an equidigital number, since it uses as much as digits as its factorization.

181822022219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 38.

The spelling of 181822022219 in words is "one hundred eighty-one billion, eight hundred twenty-two million, twenty-two thousand, two hundred nineteen".