12201489 has 16 divisors (see below), whose sum is σ = 18700800. Its totient is φ = 7853328.

The previous prime is 12201479. The next prime is 12201491. The reversal of 12201489 is 98410221.

It is not a de Polignac number, because 12201489 - 2⁵ = 12201457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12201419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7009 + ... + 8574.

It is an arithmetic number, because the mean of its divisors is an integer number (1168800).

Almost surely, 2^12201489 is an apocalyptic number.

It is an amenable number.

12201489 is a deficient number, since it is larger than the sum of its proper divisors (6499311).

12201489 is a wasteful number, since it uses less digits than its factorization.

12201489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15621 (or 15615 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 12201489 is about 3493.0629825413. The cubic root of 12201489 is about 230.2171169711.

The spelling of 12201489 in words is "twelve million, two hundred one thousand, four hundred eighty-nine".