12020422 has 4 divisors (see below), whose sum is σ = 18030636. Its totient is φ = 6010210.

The previous prime is 12020417. The next prime is 12020431. The reversal of 12020422 is 22402021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22402021 = 73 ⋅306877.

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3005104 + ... + 3005107.

It is an arithmetic number, because the mean of its divisors is an integer number (4507659).

Almost surely, 2^12020422 is an apocalyptic number.

12020422 is a deficient number, since it is larger than the sum of its proper divisors (6010214).

12020422 is an equidigital number, since it uses as much as digits as its factorization.

12020422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010213.

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

The square root of 12020422 is about 3467.0480238958. The cubic root of 12020422 is about 229.0726490958.

Adding to 12020422 its reverse (22402021), we get a palindrome (34422443).

The spelling of 12020422 in words is "twelve million, twenty thousand, four hundred twenty-two".