12420202 has 4 divisors (see below), whose sum is σ = 18630306. Its totient is φ = 6210100.

The previous prime is 12420151. The next prime is 12420211. The reversal of 12420202 is 20202421.

12420202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8994001 + 3426201 = 2999^2 + 1851^2 .

It is a super-2 number, since 2×12420202² = 308522835441608, which contains 22 as substring.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3105049 + ... + 3105052.

Almost surely, 2^12420202 is an apocalyptic number.

12420202 is a deficient number, since it is larger than the sum of its proper divisors (6210104).

12420202 is an equidigital number, since it uses as much as digits as its factorization.

12420202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210103.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 12420202 is about 3524.2306961946. The cubic root of 12420202 is about 231.5845343712.

Adding to 12420202 its reverse (20202421), we get a palindrome (32622623).

The spelling of 12420202 in words is "twelve million, four hundred twenty thousand, two hundred two".