22021193827 has 2 divisors, whose sum is σ = 22021193828. Its totient is φ = 22021193826.

The previous prime is 22021193813. The next prime is 22021193839. The reversal of 22021193827 is 72839112022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021193827 is a prime.

It is not a weakly prime, because it can be changed into another prime (22021194827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010596913 + 11010596914.

It is an arithmetic number, because the mean of its divisors is an integer number (11010596914).

Almost surely, 2^22021193827 is an apocalyptic number.

22021193827 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021193827 is an equidigital number, since it uses as much as digits as its factorization.

22021193827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 22021193827 in words is "twenty-two billion, twenty-one million, one hundred ninety-three thousand, eight hundred twenty-seven".