12201272 has 16 divisors (see below), whose sum is σ = 23436000. Its totient is φ = 5951680.

The previous prime is 12201269. The next prime is 12201283. The reversal of 12201272 is 27210221.

12201272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12201272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18272 + ... + 18927.

It is an arithmetic number, because the mean of its divisors is an integer number (1464750).

Almost surely, 2^12201272 is an apocalyptic number.

It is an amenable number.

12201272 is a deficient number, since it is larger than the sum of its proper divisors (11234728).

12201272 is a wasteful number, since it uses less digits than its factorization.

12201272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37246 (or 37242 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 12201272 is about 3493.0319208390. The cubic root of 12201272 is about 230.2157521811.

Adding to 12201272 its reverse (27210221), we get a palindrome (39411493).

The spelling of 12201272 in words is "twelve million, two hundred one thousand, two hundred seventy-two".