12026220 has 24 divisors (see below), whose sum is σ = 33673584. Its totient is φ = 3206976.

The previous prime is 12026173. The next prime is 12026257. The reversal of 12026220 is 2262021.

12026220 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12026220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100159 + ... + 100278.

It is an arithmetic number, because the mean of its divisors is an integer number (1403066).

Almost surely, 2^12026220 is an apocalyptic number.

12026220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12026220 is an abundant number, since it is smaller than the sum of its proper divisors (21647364).

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

12026220 is a wasteful number, since it uses less digits than its factorization.

12026220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200449 (or 200447 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12026220 is about 3467.8840811077. The cubic root of 12026220 is about 229.1094739187.

Adding to 12026220 its reverse (2262021), we get a palindrome (14288241).

It can be divided in two parts, 12026 and 220, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 12026220 in words is "twelve million, twenty-six thousand, two hundred twenty".