22180920227 has 2 divisors, whose sum is σ = 22180920228. Its totient is φ = 22180920226.

The previous prime is 22180920191. The next prime is 22180920233. The reversal of 22180920227 is 72202908122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22180920227 is a prime.

It is not a weakly prime, because it can be changed into another prime (22180920277) 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, 11090460113 + 11090460114.

It is an arithmetic number, because the mean of its divisors is an integer number (11090460114).

Almost surely, 2^22180920227 is an apocalyptic number.

22180920227 is a deficient number, since it is larger than the sum of its proper divisors (1).

22180920227 is an equidigital number, since it uses as much as digits as its factorization.

22180920227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 22180920227 in words is "twenty-two billion, one hundred eighty million, nine hundred twenty thousand, two hundred twenty-seven".