12122201 has 12 divisors (see below), whose sum is σ = 15003072. Its totient is φ = 9590256.

The previous prime is 12122191. The next prime is 12122221. The reversal of 12122201 is 10222121.

It is a happy number.

It is not a de Polignac number, because 12122201 - 2¹⁴ = 12105817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12122221) 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 11 ways as a sum of consecutive naturals, for example, 3941 + ... + 6306.

It is an arithmetic number, because the mean of its divisors is an integer number (1250256).

Almost surely, 2^12122201 is an apocalyptic number.

It is an amenable number.

12122201 is a deficient number, since it is larger than the sum of its proper divisors (2880871).

12122201 is a wasteful number, since it uses less digits than its factorization.

12122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10280 (or 10267 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 12122201 is about 3481.6951331212. The cubic root of 12122201 is about 229.7173654935.

Adding to 12122201 its reverse (10222121), we get a palindrome (22344322).

It can be divided in two parts, 121 and 22201, that multiplied together give a square (2686321 = 1639²).

The spelling of 12122201 in words is "twelve million, one hundred twenty-two thousand, two hundred one".