22222123444345 has 32 divisors (see below), whose sum is σ = 29629407882240. Its totient is φ = 15863412768000.

The previous prime is 22222123444327. The next prime is 22222123444387. The reversal of 22222123444345 is 54344432122222.

It is not a de Polignac number, because 22222123444345 - 2²⁵ = 22222089889913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22222123444298 and 22222123444307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5306926 + ... + 8521015.

It is an arithmetic number, because the mean of its divisors is an integer number (925918996320).

Almost surely, 2^{22222123444345} is an apocalyptic number.

It is an amenable number.

22222123444345 is a deficient number, since it is larger than the sum of its proper divisors (7407284437895).

22222123444345 is a wasteful number, since it uses less digits than its factorization.

22222123444345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13828497.

The product of its digits is 737280, while the sum is 40.

Adding to 22222123444345 its reverse (54344432122222), we get a palindrome (76566555566567).

The spelling of 22222123444345 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred twenty-three million, four hundred forty-four thousand, three hundred forty-five".