22221110123 has 2 divisors, whose sum is σ = 22221110124. Its totient is φ = 22221110122.

The previous prime is 22221110111. The next prime is 22221110141. The reversal of 22221110123 is 32101112222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22221110123 - 2⁶ = 22221110059 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22221110173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110555061 + 11110555062.

It is an arithmetic number, because the mean of its divisors is an integer number (11110555062).

Almost surely, 2^22221110123 is an apocalyptic number.

22221110123 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221110123 is an equidigital number, since it uses as much as digits as its factorization.

22221110123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22221110123 its reverse (32101112222), we get a palindrome (54322222345).

The spelling of 22221110123 in words is "twenty-two billion, two hundred twenty-one million, one hundred ten thousand, one hundred twenty-three".