12422120 has 16 divisors (see below), whose sum is σ = 27949860. Its totient is φ = 4968832.

The previous prime is 12422119. The next prime is 12422129. The reversal of 12422120 is 2122421.

It can be written as a sum of positive squares in 2 ways, for example, as 12376324 + 45796 = 3518^2 + 214^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12422095 and 12422104.

It is not an unprimeable number, because it can be changed into a prime (12422129) 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, 155237 + ... + 155316.

Almost surely, 2^12422120 is an apocalyptic number.

12422120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12422120 is an abundant number, since it is smaller than the sum of its proper divisors (15527740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12422120 is a wasteful number, since it uses less digits than its factorization.

12422120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310564 (or 310560 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12422120 is about 3524.5028018147. The cubic root of 12422120 is about 231.5964546355.

Adding to 12422120 its reverse (2122421), we get a palindrome (14544541).

The spelling of 12422120 in words is "twelve million, four hundred twenty-two thousand, one hundred twenty".