22231000189 has 2 divisors, whose sum is σ = 22231000190. Its totient is φ = 22231000188.

The previous prime is 22231000171. The next prime is 22231000219. The reversal of 22231000189 is 98100013222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16865437689 + 5365562500 = 129867^2 + 73250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22231000189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22231000889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11115500094 + 11115500095.

It is an arithmetic number, because the mean of its divisors is an integer number (11115500095).

Almost surely, 2^22231000189 is an apocalyptic number.

It is an amenable number.

22231000189 is a deficient number, since it is larger than the sum of its proper divisors (1).

22231000189 is an equidigital number, since it uses as much as digits as its factorization.

22231000189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 22231000189 in words is "twenty-two billion, two hundred thirty-one million, one hundred eighty-nine", and thus it is an aban number.