222220213123 has 2 divisors, whose sum is σ = 222220213124. Its totient is φ = 222220213122.

The previous prime is 222220213109. The next prime is 222220213181. The reversal of 222220213123 is 321312022222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222220213123 - 2²⁵ = 222186658691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222220213094 and 222220213103.

It is not a weakly prime, because it can be changed into another prime (222220214123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110106561 + 111110106562.

It is an arithmetic number, because the mean of its divisors is an integer number (111110106562).

Almost surely, 2^222220213123 is an apocalyptic number.

222220213123 is a deficient number, since it is larger than the sum of its proper divisors (1).

222220213123 is an equidigital number, since it uses as much as digits as its factorization.

222220213123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 222220213123 its reverse (321312022222), we get a palindrome (543532235345).

The spelling of 222220213123 in words is "two hundred twenty-two billion, two hundred twenty million, two hundred thirteen thousand, one hundred twenty-three".