12201552 has 60 divisors (see below), whose sum is σ = 37256544. Its totient is φ = 3696960.

The previous prime is 12201509. The next prime is 12201557. The reversal of 12201552 is 25510221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201557) 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 11 ways as a sum of consecutive naturals, for example, 2268 + ... + 5435.

Almost surely, 2^12201552 is an apocalyptic number.

12201552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12201552 is an abundant number, since it is smaller than the sum of its proper divisors (25054992).

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

12201552 is a wasteful number, since it uses less digits than its factorization.

12201552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728 (or 7719 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 12201552 is about 3493.0720004031. The cubic root of 12201552 is about 230.2175131974.

Adding to 12201552 its reverse (25510221), we get a palindrome (37711773).

It can be divided in two parts, 1220 and 1552, that added together give a palindrome (2772).

The spelling of 12201552 in words is "twelve million, two hundred one thousand, five hundred fifty-two".