12221202 has 64 divisors (see below), whose sum is σ = 29297664. Its totient is φ = 3326400.

The previous prime is 12221197. The next prime is 12221203. The reversal of 12221202 is 20212221.

It is not an unprimeable number, because it can be changed into a prime (12221203) 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 31 ways as a sum of consecutive naturals, for example, 120952 + ... + 121052.

It is an arithmetic number, because the mean of its divisors is an integer number (457776).

Almost surely, 2^12221202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12221202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14648832).

12221202 is an abundant number, since it is smaller than the sum of its proper divisors (17076462).

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

12221202 is a wasteful number, since it uses less digits than its factorization.

12221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12221202 is about 3495.8835792972. The cubic root of 12221202 is about 230.3410315790.

Adding to 12221202 its reverse (20212221), we get a palindrome (32433423).

It can be divided in two parts, 12221 and 202, that multiplied together give a palindrome (2468642).

The spelling of 12221202 in words is "twelve million, two hundred twenty-one thousand, two hundred two".