12220140123 has 12 divisors (see below), whose sum is σ = 17655944800. Its totient is φ = 8144622576.

The previous prime is 12220140091. The next prime is 12220140131. The reversal of 12220140123 is 32104102221.

It is a happy number.

It is not a de Polignac number, because 12220140123 - 2⁵ = 12220140091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220140096 and 12220140105.

It is not an unprimeable number, because it can be changed into a prime (12220140133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141523 + ... + 210876.

Almost surely, 2^12220140123 is an apocalyptic number.

12220140123 is a deficient number, since it is larger than the sum of its proper divisors (5435804677).

12220140123 is a wasteful number, since it uses less digits than its factorization.

12220140123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356258 (or 356255 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12220140123 its reverse (32104102221), we get a palindrome (44324242344).

The spelling of 12220140123 in words is "twelve billion, two hundred twenty million, one hundred forty thousand, one hundred twenty-three".