12221106 has 16 divisors (see below), whose sum is σ = 24843648. Its totient is φ = 4006800.

The previous prime is 12221089. The next prime is 12221107. The reversal of 12221106 is 60112221.

It is not an unprimeable number, because it can be changed into a prime (12221107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16330 + ... + 17061.

It is an arithmetic number, because the mean of its divisors is an integer number (1552728).

Almost surely, 2^12221106 is an apocalyptic number.

12221106 is an abundant number, since it is smaller than the sum of its proper divisors (12622542).

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

12221106 is a wasteful number, since it uses less digits than its factorization.

12221106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33457.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 12221106 is about 3495.8698488359. The cubic root of 12221106 is about 230.3404284524.

Adding to 12221106 its reverse (60112221), we get a palindrome (72333327).

The spelling of 12221106 in words is "twelve million, two hundred twenty-one thousand, one hundred six".