12220222112123 has 16 divisors (see below), whose sum is σ = 12411784927584. Its totient is φ = 12030125184000.

The previous prime is 12220222112117. The next prime is 12220222112149. The reversal of 12220222112123 is 32121122202221.

It is a cyclic number.

It is not a de Polignac number, because 12220222112123 - 2²⁴ = 12220205334907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220222112323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18099161 + ... + 18762197.

It is an arithmetic number, because the mean of its divisors is an integer number (775736557974).

Almost surely, 2^{12220222112123} is an apocalyptic number.

12220222112123 is a deficient number, since it is larger than the sum of its proper divisors (191562815461).

12220222112123 is an equidigital number, since it uses as much as digits as its factorization.

12220222112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664142.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12220222112123 its reverse (32121122202221), we get a palindrome (44341344314344).

The spelling of 12220222112123 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-two million, one hundred twelve thousand, one hundred twenty-three".