12201320 has 16 divisors (see below), whose sum is σ = 27453060. Its totient is φ = 4880512.

The previous prime is 12201311. The next prime is 12201323. The reversal of 12201320 is 2310221.

It is a happy number.

12201320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11115556 + 1085764 = 3334^2 + 1042^2 .

It is not an unprimeable number, because it can be changed into a prime (12201323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152477 + ... + 152556.

Almost surely, 2^12201320 is an apocalyptic number.

12201320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201320 is an abundant number, since it is smaller than the sum of its proper divisors (15251740).

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

12201320 is a wasteful number, since it uses less digits than its factorization.

12201320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305044 (or 305040 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12201320 is about 3493.0387916541. The cubic root of 12201320 is about 230.2160540716.

Adding to 12201320 its reverse (2310221), we get a palindrome (14511541).

It can be divided in two parts, 12201 and 320, that added together give a palindrome (12521).

The spelling of 12201320 in words is "twelve million, two hundred one thousand, three hundred twenty".