12201588 has 54 divisors (see below), whose sum is σ = 35883666. Its totient is φ = 3485664.

The previous prime is 12201587. The next prime is 12201593. The reversal of 12201588 is 88510221.

It can be written as a sum of positive squares in only one way, i.e., 11009124 + 1192464 = 3318^2 + 1092^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1695 + ... + 5222.

Almost surely, 2^12201588 is an apocalyptic number.

12201588 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12201588 is an abundant number, since it is smaller than the sum of its proper divisors (23682078).

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

12201588 is a wasteful number, since it uses less digits than its factorization.

12201588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6941 (or 6929 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 12201588 is about 3493.0771534565. The cubic root of 12201588 is about 230.2177396119.

The spelling of 12201588 in words is "twelve million, two hundred one thousand, five hundred eighty-eight".