222221320030123 has 4 divisors (see below), whose sum is σ = 222226141436568. Its totient is φ = 222216498623680.

The previous prime is 222221320030111. The next prime is 222221320030153. The reversal of 222221320030123 is 321030023122222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222221320030123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221320030153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2410634086 + ... + 2410726267.

It is an arithmetic number, because the mean of its divisors is an integer number (55556535359142).

Almost surely, 2^{222221320030123} is an apocalyptic number.

222221320030123 is a deficient number, since it is larger than the sum of its proper divisors (4821406445).

222221320030123 is an equidigital number, since it uses as much as digits as its factorization.

222221320030123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821406444.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 222221320030123 its reverse (321030023122222), we get a palindrome (543251343152345).

The spelling of 222221320030123 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, three hundred twenty million, thirty thousand, one hundred twenty-three".