12101222 has 16 divisors (see below), whose sum is σ = 21414912. Its totient is φ = 5018760.

The previous prime is 12101179. The next prime is 12101227. The reversal of 12101222 is 22210121.

It is a happy number.

12101222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101227) 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, 13508 + ... + 14375.

It is an arithmetic number, because the mean of its divisors is an integer number (1338432).

Almost surely, 2^12101222 is an apocalyptic number.

12101222 is a deficient number, since it is larger than the sum of its proper divisors (9313690).

12101222 is a wasteful number, since it uses less digits than its factorization.

12101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27923.

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

The square root of 12101222 is about 3478.6810719007. The cubic root of 12101222 is about 229.5847706677.

Adding to 12101222 its reverse (22210121), we get a palindrome (34311343).

The spelling of 12101222 in words is "twelve million, one hundred one thousand, two hundred twenty-two".