2122222312423 has 2 divisors, whose sum is σ = 2122222312424. Its totient is φ = 2122222312422.

The previous prime is 2122222312411. The next prime is 2122222312453. The reversal of 2122222312423 is 3242132222212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122222312423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122222312391 and 2122222312400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122222312453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061111156211 + 1061111156212.

It is an arithmetic number, because the mean of its divisors is an integer number (1061111156212).

Almost surely, 2^{2122222312423} is an apocalyptic number.

2122222312423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122222312423 is an equidigital number, since it uses as much as digits as its factorization.

2122222312423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 28.

Adding to 2122222312423 its reverse (3242132222212), we get a palindrome (5364354534635).

The spelling of 2122222312423 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-two million, three hundred twelve thousand, four hundred twenty-three".