12212106 has 16 divisors (see below), whose sum is σ = 24677184. Its totient is φ = 4028544.

The previous prime is 12212087. The next prime is 12212107. The reversal of 12212106 is 60121221.

It is not an unprimeable number, because it can be changed into a prime (12212107) 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 7 ways as a sum of consecutive naturals, for example, 9910 + ... + 11073.

It is an arithmetic number, because the mean of its divisors is an integer number (1542324).

Almost surely, 2^12212106 is an apocalyptic number.

12212106 is an abundant number, since it is smaller than the sum of its proper divisors (12465078).

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

12212106 is a wasteful number, since it uses less digits than its factorization.

12212106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21085.

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

The square root of 12212106 is about 3494.5823784824. The cubic root of 12212106 is about 230.2838712975.

Adding to 12212106 its reverse (60121221), we get a palindrome (72333327).

The spelling of 12212106 in words is "twelve million, two hundred twelve thousand, one hundred six".