22190431889 has 2 divisors, whose sum is σ = 22190431890. Its totient is φ = 22190431888.

The previous prime is 22190431871. The next prime is 22190431919. The reversal of 22190431889 is 98813409122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18447072400 + 3743359489 = 135820^2 + 61183^2 .

It is a cyclic number.

It is not a de Polignac number, because 22190431889 - 2³² = 17895464593 is a prime.

It is not a weakly prime, because it can be changed into another prime (22190437889) 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, 11095215944 + 11095215945.

It is an arithmetic number, because the mean of its divisors is an integer number (11095215945).

Almost surely, 2^22190431889 is an apocalyptic number.

It is an amenable number.

22190431889 is a deficient number, since it is larger than the sum of its proper divisors (1).

22190431889 is an equidigital number, since it uses as much as digits as its factorization.

22190431889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 22190431889 in words is "twenty-two billion, one hundred ninety million, four hundred thirty-one thousand, eight hundred eighty-nine".