12420322 has 16 divisors (see below), whose sum is σ = 19555200. Its totient is φ = 5905152.

The previous prime is 12420313. The next prime is 12420329. The reversal of 12420322 is 22302421.

12420322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12420296 and 12420305.

It is not an unprimeable number, because it can be changed into a prime (12420329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8179 + ... + 9577.

It is an arithmetic number, because the mean of its divisors is an integer number (1222200).

Almost surely, 2^12420322 is an apocalyptic number.

12420322 is a deficient number, since it is larger than the sum of its proper divisors (7134878).

12420322 is a wasteful number, since it uses less digits than its factorization.

12420322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 12420322 is about 3524.2477211456. The cubic root of 12420322 is about 231.5852802005.

Adding to 12420322 its reverse (22302421), we get a palindrome (34722743).

The spelling of 12420322 in words is "twelve million, four hundred twenty thousand, three hundred twenty-two".