12123022112 has 24 divisors (see below), whose sum is σ = 23872217292. Its totient is φ = 6060236800.

The previous prime is 12123022103. The next prime is 12123022123. The reversal of 12123022112 is 21122032121.

It can be written as a sum of positive squares in 2 ways, for example, as 11793091216 + 329930896 = 108596^2 + 18164^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125312 + ... + 199872.

Almost surely, 2^12123022112 is an apocalyptic number.

It is an amenable number.

12123022112 is a deficient number, since it is larger than the sum of its proper divisors (11749195180).

12123022112 is an equidigital number, since it uses as much as digits as its factorization.

12123022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79652 (or 79644 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12123022112 its reverse (21122032121), we get a palindrome (33245054233).

The spelling of 12123022112 in words is "twelve billion, one hundred twenty-three million, twenty-two thousand, one hundred twelve".