12212230123 has 4 divisors (see below), whose sum is σ = 12330795568. Its totient is φ = 12093664680.

The previous prime is 12212230103. The next prime is 12212230127. The reversal of 12212230123 is 32103221221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32103221221 = 23 ⋅1395792227.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212230123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212230123.

It is not an unprimeable number, because it can be changed into a prime (12212230127) 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, 59282568 + ... + 59282773.

It is an arithmetic number, because the mean of its divisors is an integer number (3082698892).

Almost surely, 2^12212230123 is an apocalyptic number.

12212230123 is a deficient number, since it is larger than the sum of its proper divisors (118565445).

12212230123 is a wasteful number, since it uses less digits than its factorization.

12212230123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118565444.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12212230123 its reverse (32103221221), we get a palindrome (44315451344).

The spelling of 12212230123 in words is "twelve billion, two hundred twelve million, two hundred thirty thousand, one hundred twenty-three".