12203220 has 24 divisors (see below), whose sum is σ = 34169184. Its totient is φ = 3254176.

The previous prime is 12203207. The next prime is 12203231. The reversal of 12203220 is 2230221.

12203220 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 (12).

It is a junction number, because it is equal to n+sod(n) for n = 12203196 and 12203205.

It is a congruent number.

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, 101634 + ... + 101753.

It is an arithmetic number, because the mean of its divisors is an integer number (1423716).

Almost surely, 2^12203220 is an apocalyptic number.

12203220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203220 is an abundant number, since it is smaller than the sum of its proper divisors (21965964).

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

12203220 is a wasteful number, since it uses less digits than its factorization.

12203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203399 (or 203397 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 12203220 is about 3493.3107505631. The cubic root of 12203220 is about 230.2280032650.

Adding to 12203220 its reverse (2230221), we get a palindrome (14433441).

The spelling of 12203220 in words is "twelve million, two hundred three thousand, two hundred twenty".