12102201 has 12 divisors (see below), whose sum is σ = 17511780. Its totient is φ = 8053920.

The previous prime is 12102199. The next prime is 12102239. The reversal of 12102201 is 10220121.

12102201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3686400 + 8415801 = 1920^2 + 2901^2 .

It is not a de Polignac number, because 12102201 - 2¹ = 12102199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12102241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7755 + ... + 9183.

It is an arithmetic number, because the mean of its divisors is an integer number (1459315).

Almost surely, 2^12102201 is an apocalyptic number.

It is an amenable number.

12102201 is a deficient number, since it is larger than the sum of its proper divisors (5409579).

12102201 is a wasteful number, since it uses less digits than its factorization.

12102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376 (or 2373 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 12102201 is about 3478.8217833054. The cubic root of 12102201 is about 229.5909617072.

Adding to 12102201 its reverse (10220121), we get a palindrome (22322322).

The spelling of 12102201 in words is "twelve million, one hundred two thousand, two hundred one".