123222111233 has 4 divisors (see below), whose sum is σ = 132700735188. Its totient is φ = 113743487280.

The previous prime is 123222111223. The next prime is 123222111269. The reversal of 123222111233 is 332111222321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332111222321 = 1451 ⋅228884371.

It can be written as a sum of positive squares in 2 ways, for example, as 34589676289 + 88632434944 = 185983^2 + 297712^2 .

It is a cyclic number.

It is not a de Polignac number, because 123222111233 - 2⁴ = 123222111217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123222111199 and 123222111208.

It is not an unprimeable number, because it can be changed into a prime (123222111223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4739311958 + ... + 4739311983.

It is an arithmetic number, because the mean of its divisors is an integer number (33175183797).

Almost surely, 2^123222111233 is an apocalyptic number.

123222111233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123222111233 is a deficient number, since it is larger than the sum of its proper divisors (9478623955).

123222111233 is an equidigital number, since it uses as much as digits as its factorization.

123222111233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9478623954.

The product of its digits is 864, while the sum is 23.

Adding to 123222111233 its reverse (332111222321), we get a palindrome (455333333554).

The spelling of 123222111233 in words is "one hundred twenty-three billion, two hundred twenty-two million, one hundred eleven thousand, two hundred thirty-three".