12201144 has 32 divisors (see below), whose sum is σ = 30750720. Its totient is φ = 4034016.

The previous prime is 12201143. The next prime is 12201151. The reversal of 12201144 is 44110221.

12201144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047 + ... + 5049.

It is an arithmetic number, because the mean of its divisors is an integer number (960960).

Almost surely, 2^12201144 is an apocalyptic number.

It is an amenable number.

12201144 is an abundant number, since it is smaller than the sum of its proper divisors (18549576).

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

12201144 is a wasteful number, since it uses less digits than its factorization.

12201144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139 (or 4135 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 12201144 is about 3493.0135985994. The cubic root of 12201144 is about 230.2149471361.

Adding to 12201144 its reverse (44110221), we get a palindrome (56311365).

The spelling of 12201144 in words is "twelve million, two hundred one thousand, one hundred forty-four".