12210222112 has 48 divisors (see below), whose sum is σ = 26233133472. Its totient is φ = 5548216320.

The previous prime is 12210222091. The next prime is 12210222127. The reversal of 12210222112 is 21122201221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2048128 + ... + 2054080.

It is an arithmetic number, because the mean of its divisors is an integer number (546523614).

Almost surely, 2^12210222112 is an apocalyptic number.

It is an amenable number.

12210222112 is an abundant number, since it is smaller than the sum of its proper divisors (14022911360).

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

12210222112 is a wasteful number, since it uses less digits than its factorization.

12210222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11801 (or 11793 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12210222112 its reverse (21122201221), we get a palindrome (33332423333).

The spelling of 12210222112 in words is "twelve billion, two hundred ten million, two hundred twenty-two thousand, one hundred twelve".